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the-usurper-archive/discord-evidence/full_exports/Csv/DallasMakerspace - Committees - electronics [300062878676025344].csv

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1AuthorIDAuthorDateContentAttachmentsReactions
2300080747673288704kenpurcell2017-04-08T19:04:26.7400000-05:00wonder when someone shows up in here?
3300087429052760065danielh36802017-04-08T19:04:51.9470000-05:00Don't hold your breath!
4194641296529424386canibalcrab2017-04-08T19:56:04.8990000-05:00When I posted in metal shop I was the first post since December
5156318760708472833slunchery2017-04-08T22:48:20.1010000-05:00c-c-c-combo breaker
6300087429052760065danielh36802017-04-08T23:01:41.1550000-05:00Hey, check out this expensive resistor I found! http://www.mouser.com/search/ProductDetail.aspx?R=0virtualkey0virtualkeyPTF5610K000TZEKv
7300087429052760065danielh36802017-04-08T23:02:22.6520000-05:00A steal at only $12 per unit, it's a 0.01% 5ppm/C precision, low-noise job
8303049734724124673tmc424238862017-04-16T01:19:58.7620000-05:00Not sure why, but I've joined now. Spent several hours at the space today. Finally got the new controller board hooked up to my 3D printer.
9194641296529424386canibalcrab2017-04-16T01:29:12.1490000-05:00@tmc4242 because you arent afraid of change!
10189645236908064768themitch222017-04-16T01:29:27.5840000-05:00Which controller board
11303049734724124673tmc424238862017-04-16T01:30:09.4800000-05:00MKS-Sbase. Smoothieboard Chinese clone
12189645236908064768themitch222017-04-16T01:30:41.3650000-05:00Yeah good board let me know how it works out
13303049734724124673tmc424238862017-04-16T01:32:25.9160000-05:00@pearce - I detest change, especially change for the sake of change only. Hangouts is a better platform for my use. As previously noted.
14303049734724124673tmc424238862017-04-16T01:33:05.7790000-05:00Will do Mitch. Have to actually get it to print something next. Hopefully the calibration phase won't be too bad.
15194641296529424386canibalcrab2017-04-16T01:48:08.6760000-05:00@tmc4242 i assure you i didnt do it for the sake of change, sorry your work has it banned, but they probably did that to make sure you are working at work. if youd like to argue about the merits of it we can move to a PM or #general_chatter
16303049734724124673tmc424238862017-04-16T01:49:25.4350000-05:00Nothing to argue about. I see no merit. Your comments about my work are not welcome either.
17111996864089358336banditbingo2017-05-05T13:44:33.2140000-05:00yo anyone know a good way to reuse raspi heat sinks?
18111996864089358336banditbingo2017-05-05T13:45:03.1500000-05:00I think my rpi1bs are crapping out after 3 years
19309079425679360000raymond0119052017-05-05T16:33:08.8850000-05:00Get some thermal tape to put them back on with...
20111996864089358336banditbingo2017-05-05T16:56:19.7850000-05:00thanks
21111996864089358336banditbingo2017-05-05T16:57:02.9580000-05:00@Raymond they sell that at micro centre?
22309079425679360000raymond0119052017-05-05T18:41:20.4230000-05:00i think tanner's will have it
23309079425679360000raymond0119052017-05-05T18:41:55.2930000-05:00if you would've asked yesterday i couldn't picked up some today in silicon valley before flying home tomorrow on a red-eye
24309079425679360000raymond0119052017-05-05T18:42:09.0830000-05:00but the store closes in 19 minutes and i'm across town from it
25309079425679360000raymond0119052017-05-05T18:43:29.9850000-05:00you can also find thermal adhesive in 2 part form but that's more permanent. fry's and micro center both carry that
26111996864089358336banditbingo2017-05-06T19:14:56.6890000-05:00@Raymond is thermal pads the thing ur talking about that's permanent?
27111996864089358336banditbingo2017-05-06T19:15:04.4060000-05:00that's what I'm buying at micro center.
28111996864089358336banditbingo2017-05-06T19:15:13.4050000-05:00tanner doesn't have thermal tape
29306386347248320513bendertx2017-05-07T10:11:09.8690000-05:00radioheads unite. where is everybody? on the roof?
30294269552705929216limeytx2017-05-07T10:21:50.7920000-05:00https://youtu.be/r5V8ecsrxeY
31309079425679360000raymond0119052017-05-08T09:41:48.9520000-05:00Thermal pads are different... they aren't adhesive. MC only carries the pads, thermal compound, or thermal adhesive 2-part epoxy mix.
32309079425679360000raymond0119052017-05-08T09:42:09.5440000-05:00they don't carry thermal tape that holds the heatsink on without screws/clamps
33207961619538378762denzuko2017-05-08T11:20:10.0810000-05:00@Raymond that just remind me of https://1.bp.blogspot.com/-4gbBGWxt8Uk/WF52Qjr0JnI/AAAAAAAAByk/gp_PX0pDfr4sNooLks8pkbFGxII6HdemwCLcB/s1600/Groot.jpg
34207961619538378762denzuko2017-06-06T11:59:24.2640000-05:00would anyone know of a good way to "short" two gpio pins in tiny package that will do the short/switch on a VCC pulse but does send a electric signal to either connector?
35207961619538378762denzuko2017-06-06T12:00:16.1080000-05:00I'm thinking something like a very tiny relay of sorts, but not sure which parts and part number would work
36207961619538378762denzuko2017-06-07T11:53:15.2350000-05:00maybe a mosfet would work? but how would one close the circuit so it acts more like a button?
37300372290586279938darrent_2017-06-08T13:09:24.8250000-05:00It sounds like you need a conversion from momentary switch behavior to latching behavior.
38300372290586279938darrent_2017-06-08T13:09:33.8460000-05:00http://www.mosaic-industries.com/embedded-systems/microcontroller-projects/electronic-circuits/push-button-switch-turn-on/latching-toggle-power-switch
39300372290586279938darrent_2017-06-08T13:10:47.1590000-05:00Figure 2 sounds like what you are wanting to do where the Power Input net and the Switched Power net are the GPIO lines that you wish to short together.
40209077109631614977pogopadawan2017-06-08T18:50:16.9280000-05:00I'm looking for help with networking two Raspberry Pis via an Ad-Hoc network. Does anyone know who I could talk to about this?
41194641296529424386canibalcrab2017-06-08T19:34:07.9580000-05:00@themitch22
42189645236908064768themitch222017-06-08T19:49:59.2300000-05:00@Denzuko.sdf.org
43207961619538378762denzuko2017-06-08T21:46:28.2310000-05:00lol. yes I'm the resident IT/Linux/RPI guru @pogopadawan
44207961619538378762denzuko2017-06-08T21:47:06.2300000-05:00so I guess you're doing this over WiFi? would you be using ipv4 or ipv6?
45207961619538378762denzuko2017-06-08T21:48:10.6430000-05:00also, would you be using rasbian or arch?
46209077109631614977pogopadawan2017-06-08T22:00:11.7930000-05:00Yes. I'm using ipv4 on raspbian. Currently I'm using project Byzantium to get a base working, but it doesn't give me as many options as I need. If you are here now I'm in the common area to talk more if needed.
47300372290586279938darrent_2017-06-12T16:58:48.4410000-05:00Left my water bottle in the room. Will pick up later this evening.
48207961619538378762denzuko2017-06-30T19:10:36.6720000-05:00sorry @art I just found a spanner I was using in my pocket when I got home. Guess I had a brain fart or got destination. I'll be by this weekend to wrap up a few things on my back log so I'll bring it by and donate a little to your committee while I'm at it.
49302122548404027392artg_dms81852017-07-01T11:36:00.1740000-05:00Thanks!
50207961619538378762denzuko2017-07-02T02:06:36.3320000-05:00the spanner is right back at home in his drawer at the space. again sorry about that. is there anything pressing you guys are needing for the committee like tools or supplies?
51302122548404027392artg_dms81852017-07-02T09:34:21.5020000-05:00At the moment no. Will be ordering in the near future. Need to do a walk around the Space to round up/return tools. If you run across tools w/ yellow on them, they probably need to be returned the ELab.
52207961619538378762denzuko2017-07-03T07:25:25.3780000-05:00will do
53456226577798135808Deleted User2017-07-05T16:14:27.2950000-05:00Can I power motors (4) rated at 4v each with a 5v 10a power supply
54315861830364823563anandelamaran2017-08-07T17:38:09.3000000-05:00Just checking, is the 'Wavetek Model 143' Function generator working and available to use? I am planning to do some experiments this weekend so wanted to know before visiting the space. Thanks.
55198563718026493952stark4machines2017-08-13T14:09:12.3010000-05:00Can I get someone's help on a Line 6 Delay Pedal? It's never been dropped or anything, but I assume it's a loose jack connection or something simple. It powers on and everything, but no audio. Any help would be greatly appreciated! (718) 795-3187
56432401820569042944kevpat2018-04-13T23:57:55.4560000-05:00As far as the expansion goes. May I suggest a computer test bench.
57432401820569042944kevpat2018-04-18T19:16:18.6500000-05:00I got Ultra Violet & Side emitting LEDs coming for the Mouser sign. I think UV would look the cleanest. But having a colorful Bluetooth one where anyone could scan the bar code and play with different light configs on their phone would be fun also. Any opinions but anoying if its not on the outside of the wall. I suggest UV inside & Color RGB outside
58263957475718463488blackfire_tx90402018-04-19T01:43:11.4490000-05:00Anyone want to try to repair a UPS? It has, appearantly, a bad charging board that was taken out. I modified the board to allow for an external fuse w/o success in fixing the board.
59189645236908064768themitch222018-05-07T14:03:11.0160000-05:00https://mcuoneclipse.com/2018/05/05/sneak-preview-diy-smt-pick-place-machine-with-openpnp/amp/?__twitter_impression=true
60346385239918116865gothannie2018-05-23T15:21:40.3400000-05:00Does anyone have a suggestion to where I could purchase solar panels (DIY small 9V) locally? I checked Tanners but they don't have one that large. Unless I missed it.
61227790908035170305adam13342018-05-24T18:04:40.3100000-05:00Harbor Freight sells some of what I'll call midsize panels, but I think they're 12V. Maybe a camping store, but you're likely to pay out the nose for them as they'll be productized.
62371416661040955403talkers2018-08-06T12:05:45.5860000-05:00@VenomV you can get a higher voltage panel (like 12v-24v) and a Buck convertor (<$10) to bring the voltage down to 9v
63120598771439632387m9e2018-08-27T08:28:54.1960000-05:00Does anyone know who might sell a 40 position 1mm pitch ffc ribbon cable locally?
64456653354794483715blameitontexas2018-08-28T15:45:09.8880000-05:00@VenomV I have a couple
6564901165602582528emmathyst2018-09-25T19:33:13.3090000-05:00Dang I'm just catching up since I've been inactive for awhile
6664901165602582528emmathyst2018-09-25T19:33:35.1210000-05:00That openPnP machine looks awesome
67505441900124176384beren043422018-10-26T13:10:47.4470000-05:00i'm looking for a python tutor, bi-weekly, $20, 90 minute sessions
68194641296529424386canibalcrab2018-10-26T13:25:35.4850000-05:00Yo. Let's not spam that any farther
69190945022399610890timooni2018-12-14T17:31:56.9590000-06:00Hey, so I don't know if this was passed or if it was just being talked about
70190945022399610890timooni2018-12-14T17:33:15.3710000-06:00but y'know that major victory for right to repair? Able to reverse engineer devices and software for the purposes of repair, in exception to any EULA / TOS / Copyright whatever
71190945022399610890timooni2018-12-14T17:33:56.3630000-06:00for example, iphones / ipad DRM, john deere onboard computers, etc
72190945022399610890timooni2018-12-14T17:35:46.0460000-06:00well i had this shower thought that this exception could be used for the development of repair techniques, or for larger groups to publish fixes for these devices so that as companies make the DRM more difficult to break, individuals don't have to reinvent the wheel. Larger groups can stay on top of it and make it easy.
73190945022399610890timooni2018-12-14T17:37:55.9140000-06:00if it's legal for an individual to reverse engineer DRM to repair their device, is it also legal for a nonprofit to reverse engineer DRM for anyone to be able to repair the same device? I'd imagine so. If that's the case, we should totally do that. I think there are people here qualified to do stuff like that.
74516152872522743828dinkbatt2019-01-17T18:54:47.2070000-06:00there's already quite a few how to fix websites and youtube channels that will provide detailed instructions on, well, pretty much anythign you would need to fix ever. https://www.ifixit.com/ for starters. among many others
75516152872522743828dinkbatt2019-01-17T18:54:58.0360000-06:00not sure if that's what you're referring to? a collection of information easily referencable?
76190945022399610890timooni2019-01-17T22:31:21.7590000-06:00ifixit is a good resource yeah
77190945022399610890timooni2019-01-17T22:31:32.4160000-06:00but i mean unofficial patches to circumvent apple drm for example
78190945022399610890timooni2019-01-17T22:31:42.2860000-06:00we could develop them under the pretense of repairability
79516152872522743828dinkbatt2019-01-20T03:11:36.7600000-06:00ohhhhhhhhhhhh
80516152872522743828dinkbatt2019-01-20T03:11:40.5540000-06:00cough you mean like jailbreaking
81325498566762299393mizgeek2019-01-20T03:12:29.6650000-06:00🙀
82516152872522743828dinkbatt2019-01-20T03:13:18.7690000-06:00im pretty sure the jailbreaking gets released by anyone and everyone that can develop it as fast as possible. OS cracking is, well, a science and art whoever has a ridiculous amount of free time and experience to crack it. also some phones on the lower end of the android are just flat out not worth cracking due to low specs that make it usefulles for just about anything outside manufacturer intended tasks?💯 (1)
83516152872522743828dinkbatt2019-01-20T03:13:38.3080000-06:00sorry not trying to overly criticize, just providing a feasiblity assemsement
84516152872522743828dinkbatt2019-01-20T03:14:11.6820000-06:00like i've definitely done like 3/4 of a comp sci degree and jailbrekaing is not something volunteer workers can just knock out in a few sittings.
85190945022399610890timooni2019-01-31T15:39:14.0950000-06:00I see ok
86296874308028858370randouser12019-03-03T11:14:45.1910000-06:00question, if you step down DC power with a buck converter... say a 12V 3A power supply to 5v with a buck converter rated for 3 amps
87296874308028858370randouser12019-03-03T11:14:51.4450000-06:00do you get 5V 3A?
88296874308028858370randouser12019-03-03T11:15:14.9650000-06:00curious as if stepping down power affects the available output current in any way
89194641296529424386canibalcrab2019-03-03T11:20:08.4960000-06:00I'm pretty sure amps are pulled from the device using it
90194641296529424386canibalcrab2019-03-03T11:20:30.2760000-06:00I don't play with buck/boosters though
91296874308028858370randouser12019-03-03T11:20:50.7470000-06:00right, just curious if the available is still 3A
92296874308028858370randouser12019-03-03T11:20:57.9140000-06:00say I have 3 fans that each require 1A
93296874308028858370randouser12019-03-03T11:21:14.8640000-06:00if I step down 12v to 5V for the fans, can I still power those 3 fans
94194641296529424386canibalcrab2019-03-03T11:21:37.8860000-06:00The booster should have it detailed on the spec right?
95296874308028858370randouser12019-03-03T11:21:51.3260000-06:00all I can find is what it's rated ofr
96296874308028858370randouser12019-03-03T11:21:52.4920000-06:00for*
97194641296529424386canibalcrab2019-03-03T11:22:52.5270000-06:00Dang
98388213344236077056doug.emes2019-04-09T21:20:23.2620000-05:00So Pearce and I were talking about neopixels... I'm talking with my DPRG buddies and I think I might be able to implement a touch slide at best, or 2 touch buttons at worst for a mode up/down
99388213344236077056doug.emes2019-04-09T21:40:06.4000000-05:00im digging into the 187 page guide now
100194641296529424386canibalcrab2019-04-10T00:11:54.9840000-05:00im not totally sure i follow
101194641296529424386canibalcrab2019-04-10T00:12:27.5350000-05:00actually im not even sure i know how the touch lamps work except that it has to be on a metal surface
102388213344236077056doug.emes2019-04-10T00:39:35.6270000-05:00So on the nine dollar trinket board, it has 3 of the pins of the actual chip able to be used for capacitive touch . One of those is also the direct memory access pin for driving the neopixels.
103388213344236077056doug.emes2019-04-10T00:41:06.4960000-05:00But that still leaves us another normal gpio pin for another selection. So in theory one cap touch can be mode up, and the other mode down
104388213344236077056doug.emes2019-04-10T00:42:27.6040000-05:00I tried updating to circuit python 3.x but lost my code, but I had it at home still so tomorrow night I should be able to virtually start fresh
105194641296529424386canibalcrab2019-04-10T00:42:28.5790000-05:00interesting. i think id only need one though since all the sides are soldered together
106194641296529424386canibalcrab2019-04-10T00:43:21.6870000-05:00but making any of my stained glass stuff cap touch activated sounds awesome
107388213344236077056doug.emes2019-04-10T00:43:51.4180000-05:00If we try a strip of copper tape or what not, I should in theory be able to make a slider but I need to do some trsting
108388213344236077056doug.emes2019-04-10T00:44:43.2970000-05:00Anyways I've got the hankering to figure this out
109194641296529424386canibalcrab2019-04-10T00:45:57.8400000-05:00youd have to figure out how to turn a single large surface into a slider, like maybe have it compare between the two pins connected to the same surface
110388213344236077056doug.emes2019-04-10T00:46:08.1560000-05:00Yes
111388213344236077056doug.emes2019-04-10T11:08:28.6250000-05:00Ok I determined my prior code wasn't on circuit python but in arduino... which I already know how to do cases, so should have something this coming weekend. Right now I'm slammed with work learning all the new things in my new gig
112388213344236077056doug.emes2019-05-19T18:28:17.7880000-05:00borrowed one standard PC power cord, will be bringing it back to lab at conclusion of software meet n geek
113456226577798135808Deleted User2019-06-24T15:30:53.5660000-05:00https://www.youtube.com/watch?v=z71h9XZbAWY
114564831190390145025denzukoatwork23172019-06-24T18:55:40.0480000-05:00ALU.. Memory.. yeah that's got VCC written all over it.
115564831190390145025denzukoatwork23172019-06-24T18:55:48.2790000-05:00time to cross post 😉
116194641296529424386canibalcrab2019-06-24T18:57:29.1790000-05:00thats awesome
117564831190390145025denzukoatwork23172019-07-08T16:09:08.2080000-05:00https://www.youtube.com/watch?v=l7rce6IQDWs
118564831190390145025denzukoatwork23172019-07-08T16:09:59.3520000-05:00I'm going to build one of these for the hell of it. but thinking of using fewer chips. (ie eeproms and 8bit or 12bit shift registers)
119564831190390145025denzukoatwork23172019-07-08T16:10:07.9890000-05:00any suggestion on chip models?
120564831190390145025denzukoatwork23172019-07-08T16:35:36.8530000-05:00maybe two pairs of sn74hc595 and 74ls163a, which then trigger logic on the eeprom. or would one still need a 74ls273?
121564831190390145025denzukoatwork23172019-07-08T16:35:58.9310000-05:00like shown in https://hackaday.io/project/20161/gallery#8425197f9672fd5b9318046303ae1c5c
122194641296529424386canibalcrab2019-07-08T17:09:23.7070000-05:00Neat
123131564084226293760ruiner.eth2019-07-15T12:03:03.2920000-05:00I've been waiting for that part 2 to come out
124131564084226293760ruiner.eth2019-07-15T12:03:09.6890000-05:00I'm game
125564831190390145025denzukoatwork23172019-07-15T13:44:44.4060000-05:00oh this one: https://www.youtube.com/watch?v=uqY3FMuMuRo
126564831190390145025denzukoatwork23172019-07-15T13:44:55.9080000-05:00I've been waiting for it too
127564831190390145025denzukoatwork23172019-07-15T13:45:42.9360000-05:00I'll order up the parts if someone wants to put together the BOM then we can get a class on the calendar
128547106163842613259nullinterface2019-07-31T09:31:27.4940000-05:00is the battery pack spot-welder in good working order?
129488485682184978442yashsedai2019-07-31T09:57:13.2720000-05:00it is
130488485682184978442yashsedai2019-07-31T09:57:20.7050000-05:00malcom uses it regularly 😃
131547106163842613259nullinterface2019-07-31T10:02:34.7430000-05:00well then. I hear that lithium fires are a true sight to behold up close and in person.
132488485682184978442yashsedai2019-07-31T11:05:29.5600000-05:00i'd be down
133488485682184978442yashsedai2019-07-31T11:05:37.1270000-05:00we can do it at your house?
134488485682184978442yashsedai2019-07-31T11:05:43.0080000-05:00ill stab the cell
135547106163842613259nullinterface2019-07-31T12:11:09.6650000-05:00that would involve borrowing the battery spot welder, which probably isn't allowed. best to do it in the e-lab.
136207721887067799562aesthetys2019-10-09T00:53:53.2360000-05:00Does anyone have experience programming z80 microprocessors?
137302122548404027392artg_dms81852019-10-13T13:37:01.2280000-05:00I did Z80 assembly pgmng a long while back. What do you want to do?
138197713707575279617thegrandpoobah68492019-10-15T09:47:55.9410000-05:00Hey guys, quick question. I'm needing to get some max7219 in short order for a Halloween costume. All the ones I'm finding on Amazon and ebay wouldn't be here for at least a month. Do you guys have a website or a local place that might be useful?
139540021655909695488michaelb52502019-10-15T10:09:36.4200000-05:00Mouser has them in stock. Usually ground shipping takes a day or if you drive out to Mansfield you can do will call.👍 (2)
140547106163842613259nullinterface2019-10-15T11:17:07.0220000-05:00E-Lab want to schedule an election sometime before the Board meeting?
141300080747673288704kenpurcell2019-10-15T12:03:20.7440000-05:00Weirdly Amazon has max7219 chips and matrix displays with delivery available for tomorrow.
142302122548404027392artg_dms81852019-10-15T22:59:57.3640000-05:00Electronic Com Mtng Thurs Nov 7. It'll eventually make it to the Event Cal.....👍 (2)
143547106163842613259nullinterface2019-10-23T18:49:55.1380000-05:00https://cdn.discordapp.com/attachments/300062878676025344/636712942301216787/Screenshot_20191023-184700.png?ex=67b9b9e2&is=67b86862&hm=a526e3a4d839d8a44960cecabeb84fe6ae29a3d2bf6b070834e35dc0cf1fd0a7&
144547106163842613259nullinterface2019-10-23T18:50:16.6990000-05:00Wow. 300 **Ah** in such a small package!doubt (2)
145300080747673288704kenpurcell2019-10-24T06:40:27.0120000-05:00I'll take two and power my house.
146456226577798135808Deleted User2019-11-28T20:16:29.7850000-06:00Quick question
147456226577798135808Deleted User2019-11-28T20:19:16.7660000-06:00I have an Arduino Uno with a relay shield. I connected the positive of an extension cord in series with the relay contacts on the board and everything works fine when I'm plugged into the computer. As soon as I remove the USB, and connect it to a 5v power supply (board standard), the relays won't fire. The LEDs for the relays fire...but the relays themselves don't fire...any ideas?
148194641296529424386canibalcrab2019-11-28T20:25:27.8360000-06:00I believe the relay board needs its own power. The 5v from a USB won't be enough to power it
149456226577798135808Deleted User2019-11-28T20:42:14.2510000-06:00But it powers off of the USB
150456226577798135808Deleted User2019-11-28T20:42:29.3290000-06:00Wouldn't the 5v be stronger than the USB
151194641296529424386canibalcrab2019-11-28T20:43:23.4110000-06:00USB is going to be 5v and .05 amp unless you have a powered usb
152194641296529424386canibalcrab2019-11-28T20:43:35.0190000-06:00I'm thinking you don't have the amps
153456226577798135808Deleted User2019-11-28T20:44:00.8290000-06:00hmm...okay...so how would I go about powering the shield seperately?
154194641296529424386canibalcrab2019-11-28T20:44:20.6040000-06:00Wall wart?
155456226577798135808Deleted User2019-11-28T20:44:46.2800000-06:00What's that?
156456226577798135808Deleted User2019-11-28T20:45:11.4370000-06:00Oh I just looked it up
157456226577798135808Deleted User2019-11-28T20:46:07.0510000-06:00So...there's a bunch of pinouts on the relay shield...correct me if I'm wrong, but wouldn't it need to input into the VCC and GND pinout?
158194641296529424386canibalcrab2019-11-28T20:46:10.8210000-06:00In theory once you have more power it will work since the led worked. That means it got the right code
159456226577798135808Deleted User2019-11-28T20:48:34.4840000-06:00hmmm
160456226577798135808Deleted User2019-11-28T20:48:59.2180000-06:00So what would be the suggestion? There isn't a spot for a power supply in.
161456226577798135808Deleted User2019-11-28T20:49:07.7280000-06:00not on the relay shield, anyway
162194641296529424386canibalcrab2019-11-28T20:49:19.7550000-06:00Gonna drive home then I can send pics
163456226577798135808Deleted User2019-11-28T20:49:24.5360000-06:00ok
164456226577798135808Deleted User2019-11-28T20:49:32.8930000-06:00I'll send media in the meantime
165194641296529424386canibalcrab2019-11-28T20:49:47.1070000-06:00What Arduino are you using
166456226577798135808Deleted User2019-11-28T20:50:38.7220000-06:00uno
167456226577798135808Deleted User2019-11-28T20:51:22.0080000-06:00https://cdn.discordapp.com/attachments/300062878676025344/649804547241410560/IMG_20191128_205006.jpg?ex=67b93ba4&is=67b7ea24&hm=61551ed803c097bd644d36f939ca10e9ea1acd2ae2f1edcee4426e64de03d1b4&,https://cdn.discordapp.com/attachments/300062878676025344/649804548256563200/IMG_20191128_205018.jpg?ex=67b93ba5&is=67b7ea25&hm=2765632e5a7ea06121b8fc90f0c14f95da082727b8df2d034af24f702c0c471b&,https://cdn.discordapp.com/attachments/300062878676025344/649804549120458782/IMG_20191128_205024.jpg?ex=67b93ba5&is=67b7ea25&hm=8f1872341d8c8535ab6192d539eb17b642bf40431d26f53edbd9551638a90553&
168540021655909695488michaelb52502019-11-28T21:25:26.4640000-06:00@Deleted User you plugged 5v into the black DC jack? Or did you use a USB charger?
169456226577798135808Deleted User2019-11-28T21:36:30.2450000-06:00Well that's where the change happened
170456226577798135808Deleted User2019-11-28T21:36:36.6860000-06:00it works when I have it in USB
171456226577798135808Deleted User2019-11-28T21:36:46.9470000-06:00when I plug in the jack, the relays don't fire
172456226577798135808Deleted User2019-11-28T21:47:33.3390000-06:00and yes, 5v
173540021655909695488michaelb52502019-11-28T22:20:30.3550000-06:00Few possibilities, where did you get the relay board from?
174540021655909695488michaelb52502019-11-28T22:21:44.8180000-06:00And keep in mind that DC jack isn't actually designed for 5v, it's meant for like 7-12v iirc. They have a 5v regulator on it, sonif you give it exactly 5v the regulator cant regulate and behaves unexpectedly
175456226577798135808Deleted User2019-11-28T22:40:51.2820000-06:00HMMMM OK
176456226577798135808Deleted User2019-11-28T22:40:56.3520000-06:00sorry for the caps
177456226577798135808Deleted User2019-11-28T22:41:08.2850000-06:00So, do I need to remove the regulator?
178456226577798135808Deleted User2019-11-28T22:41:30.0810000-06:00or get a different power supply to handle the entire pinned out board
179432401820569042944kevpat2019-11-28T23:28:14.6490000-06:00Well usb is 3.3v if it likes that. Feed it that
180388213344236077056doug.emes2019-11-28T23:33:06.5280000-06:00USB has NEVER been 3.3,
181371416661040955403talkers2019-11-29T02:54:21.9240000-06:00@Deleted User you should be good just using a USB cable and power adapter. USB is 5v. You really should not need a lot of amps for the relays. They are just magnetic switches.
182456226577798135808Deleted User2019-11-29T08:21:38.3800000-06:00@john a gorman well that doesn't answer the issue at hand, which is that the relays won't fire, but the LED for the relay does. Makes no sense
183371416661040955403talkers2019-11-29T08:24:01.2230000-06:00You were right that power isn't an issue if it works off the PC USB. As Pearce says, that's only 1/2 an amp
184371416661040955403talkers2019-11-29T08:24:14.1440000-06:00I would look at the code
185540021655909695488michaelb52502019-11-29T08:46:15.7720000-06:00Where'd you get the relay board? This really depends on where the board gets its power from (Arduino provides 5v, 3.3v, and 'Vin' pins on its headers)
186371416661040955403talkers2019-11-29T08:51:05.5250000-06:00@michaelb the relay shield should be pulling power off the uno board
187371416661040955403talkers2019-11-29T08:51:48.3440000-06:00So it will pull what it needs
188540021655909695488michaelb52502019-11-29T08:56:14.9950000-06:00It matters which pin the relay board pulls from.
189540021655909695488michaelb52502019-11-29T08:57:00.6620000-06:00By providing 5v to the DC jack, the VIN and 5v pins will hover around 4.5v, and the 3.3v will still be 3.3.
190540021655909695488michaelb52502019-11-29T08:57:54.7710000-06:00So if it pulls power from 3.3v that's not the issue. If it's expecting 5v then it could have problems
191316809616828923904hon1nbo2019-11-29T14:28:48.4410000-06:00What Michael said. The LED on the relay output may have enough power after the voltage drop, but the coil may not make an appropriate field strength.👌 (1)
192456226577798135808Deleted User2019-11-29T17:13:25.2000000-06:00I mean the shield just stacks onto the Uno and pinouts all go through to the relay board
193456226577798135808Deleted User2019-11-29T17:13:49.1730000-06:00So I'm not really sure. I'll grab my multi meter later and check it to see
194540021655909695488michaelb52502019-11-29T17:16:45.4930000-06:00If you know who you bought it from they might have the schematic available
195540021655909695488michaelb52502019-11-29T17:17:02.1900000-06:00But really the answer is find a 7-12v supply and try that.
196456226577798135808Deleted User2019-11-29T17:24:41.8890000-06:00I mean it's an Arduino Uno and a Seeed Relay Shield
197456226577798135808Deleted User2019-11-29T17:31:28.1210000-06:00But does that 7-12v power supply plug into the built in connector on the Uno?
198540021655909695488michaelb52502019-11-29T18:31:27.5660000-06:00Yeah the 7-12v plugs into the black DC jack on the uno
199456226577798135808Deleted User2019-11-29T21:35:59.6840000-06:00Ok cool thanks. I'll have to track that down.
200627685589109571594denzuko52452020-01-17T01:33:42.2880000-06:00Random question, does one have to flash a fresh esp8266 esp01 or does the at command modes work out of the box with an ftdi board?
201627685589109571594denzuko52452020-01-17T01:35:23.6090000-06:00Ordered https://www.amazon.com/gp/product/B07NWD1TQM and just like the last attempt a few years ago I get zilch from the port but the device does seem to be "functioning" when tested with a multimeter.
202627685589109571594denzuko52452020-01-24T00:37:21.3200000-06:00take it that its an unknown. 😦
203544287993733709824pwnieluver2020-02-15T11:49:49.0730000-06:00https://youtu.be/aScAZReGQc0 I wanna build on of these, and I don't wanna electrocute myself
204316809616828923904hon1nbo2020-02-15T14:09:42.3660000-06:00It's pretty easy to do that may mod, and most CRTs have good isolation of the HV from what you'd want to mess with. Since the tubes are typically replaceable, they are commonly using Spade connectors. You can pull one pair and if it is the vertical scan done, otherwise replace spades and grab the other pair These units are fun, but unless you make a new driver for the X sweep you are limited in what you can do with it.
205194641296529424386canibalcrab2020-02-15T14:12:09.8300000-06:00Crts are pretty easy to be careful with. There's one real big wire that attaches to the tube and transformer to watch out for
206300080747673288704kenpurcell2020-02-15T17:31:32.0990000-06:00When I was 13 i switched the horizontal and vertical deflection guns so I could watch the tv in a mirror.
207316809616828923904hon1nbo2020-02-15T18:39:01.3530000-06:00there's the big wire, but also the caps on the driver board for the flyback. Those can operate at intermediate voltages and be a little nasty
208547106163842613259nullinterface2020-02-16T13:48:04.0280000-06:00saw a WEGA TV out on the curb the other day
209547106163842613259nullinterface2020-02-16T13:48:14.1650000-06:00but odds are it's been rained on
210540021655909695488michaelb52502020-03-20T15:55:02.4470000-05:00!members
211306874939535917066dallas-makerspace#47632020-03-20T15:55:02.5460000-05:00There are currently 1868 members.
212343401228493127681ferricyanide74752020-03-20T16:16:33.0870000-05:00!
213343401228493127681ferricyanide74752020-03-20T16:16:45.4460000-05:00!members
214306874939535917066dallas-makerspace#47632020-03-20T16:16:45.6420000-05:00There are currently 1868 members.
215262734618447446016draco_the_drake2020-03-22T02:19:26.9480000-05:00Forrest Mims III libraryhttps://cdn.discordapp.com/attachments/300062878676025344/691184247490478140/forrest_mims_iii.jpg?ex=67b97a7e&is=67b828fe&hm=c6ac0419b22435aa12b5371139d7d1498191723a2c68428116c2cd51031d29ec&
216316809616828923904hon1nbo2020-03-22T04:24:59.4670000-05:00oh man I used to have a lot of those mini notebooks when I was a kid
217262734618447446016draco_the_drake2020-03-22T04:41:24.7790000-05:00Me too .. it was what I looked through as a kid ... seeing all the circuits I could build .. some of them I had no idea about and others I built
218262734618447446016draco_the_drake2020-03-22T04:42:42.3570000-05:00I can say I still don't know what a Monostable Multivibrator is... lol .. but it was in the books somewhere
219262734618447446016draco_the_drake2020-03-22T04:50:05.2410000-05:00The other book that I had was a 74 series reference from TI .. thick book but had all kinds of parts and datasheets about what they did
220262734618447446016draco_the_drake2020-03-22T21:53:17.7920000-05:00https://www.youtube.com/watch?v=LLsDq0cN2H8
221400392357230673920james_david_vance2020-03-24T02:30:14.4730000-05:00> like i've definitely done like 3/4 of a comp sci degree and jailbrekaing is not something volunteer workers can just knock out in a few sittings. @SackOvRats (Brenly) if you're talking about jailbreaking devices, it's really easy, and you can even do it with an Android device, though not sure how practical: https://www.youtube.com/watch?v=tc0GqDueUIE
222400392357230673920james_david_vance2020-03-24T02:33:42.6290000-05:00> if it's legal for an individual to reverse engineer DRM to repair their device, is it also legal for a nonprofit to reverse engineer DRM for anyone to be able to repair the same device? I'd imagine so. If that's the case, we should totally do that. I think there are people here qualified to do stuff like that. @Timooni Here are some resources: A really good guide for beginners (helped me get started): https://github.com/iosre/iOSAppReverseEngineering https://iphonedevwiki.net/index.php/Main_Page
223400392357230673920james_david_vance2020-03-24T02:34:39.6770000-05:00@Timooni you can also ask people in #computer-committee which is for the computer committee
224194641296529424386canibalcrab2020-03-24T02:38:19.4460000-05:00fixed. yall stop changing names.❤️ (2)
225400392357230673920james_david_vance2020-03-25T12:41:43.4140000-05:00@pearce I actually wasn't asking for that but I appreciate it
226540021655909695488michaelb52502020-03-25T13:06:26.0410000-05:00!members
227306874939535917066dallas-makerspace#47632020-03-25T13:06:26.2610000-05:00There are currently 1807 members.
228540021655909695488michaelb52502020-03-27T21:48:06.0070000-05:00!members
229306874939535917066dallas-makerspace#47632020-03-27T21:48:06.2010000-05:00There are currently 1790 members.
230400392357230673920james_david_vance2020-03-28T21:41:05.7160000-05:00Figured I cross-post this: https://talk.dallasmakerspace.org/t/virutal-dms-coder-night-dialogflow-walkthrough-w-james-henningson/70415 Post has more info, but James is doing a walkthrough of Dialogflow at the next DMS Coder Night on Tuesday at 7pm
231479838014848368650patrickpleez12020-03-28T23:50:03.4770000-05:00I’m looking for a long, thin, triangular bit. My solar battery tripped itself. And I need to reset it. But no external reset.
232194641296529424386canibalcrab2020-03-29T00:22:52.5830000-05:00A tri tip driver bit?
233194641296529424386canibalcrab2020-03-29T00:23:00.6600000-05:00I thought only Nintendo used those
234479838014848368650patrickpleez12020-03-29T01:33:16.2840000-05:00Nope. It’s in this damn solar box. I have them, just not thin enough.
235547106163842613259nullinterface2020-03-29T01:34:02.6350000-05:00also, long and thin? I've seen those on ~⅛" precision kits but not on standalone screwdrivers.
236194641296529424386canibalcrab2020-03-29T01:34:33.5880000-05:00post a pic of the screwhead
237547106163842613259nullinterface2020-03-29T01:35:18.3070000-05:00Actually I've seen them on ¼" sets as well
238479838014848368650patrickpleez12020-03-29T01:37:22.1520000-05:00> post a pic of the screwhead @pearce that may be hard. I’ll try.
239194641296529424386canibalcrab2020-03-29T01:38:10.5370000-05:00?https://cdn.discordapp.com/attachments/300062878676025344/693710578602213376/unknown.png?ex=67b970d2&is=67b81f52&hm=23731ff67b31cf84a6d01eaac0fb4518a3aba6c11650a054e6891ba594494383&
240479838014848368650patrickpleez12020-03-29T01:38:45.7740000-05:00More of voided triangle.
241194641296529424386canibalcrab2020-03-29T01:38:47.0980000-05:00hft appears to have triwing setshttps://cdn.discordapp.com/attachments/300062878676025344/693710731971133520/unknown.png?ex=67b970f7&is=67b81f77&hm=88b9b8adf37ec891462007983ecb4b462b7f61fe2973ef8649afad8370b2ad9d&
242479838014848368650patrickpleez12020-03-29T01:40:10.7120000-05:00https://cdn.discordapp.com/attachments/300062878676025344/693711080521859082/image0.jpg?ex=67b9714a&is=67b81fca&hm=96864208b05c0ec496aa2725ba4f8a821c1b6e8b69619c757fc1525f9ae4429c&
243479838014848368650patrickpleez12020-03-29T01:41:13.2930000-05:00These are them. Maybe harbor freight will have them.
244479838014848368650patrickpleez12020-03-29T01:41:31.7140000-05:00The length is my issue.LCEyebrows (1)
245294269552705929216limeytx2020-04-02T17:26:03.3200000-05:00Opinions? Repairable?https://cdn.discordapp.com/attachments/300062878676025344/695398671633875035/92241470_702290297181326_7170268860665298944_n.jpg?ex=67b9a63b&is=67b854bb&hm=f2c9cb0e902035c0b02198b954a8c16eb0f2c3709f0a67ee90cb30416b4a0c50&
246294269552705929216limeytx2020-04-02T17:26:05.4060000-05:00https://cdn.discordapp.com/attachments/300062878676025344/695398680408358922/92184834_769932860201923_8148975127262920704_n.jpg?ex=67b9a63d&is=67b854bd&hm=18c79671259e738b8b02aade0b898c70d3f7b7373bf743997b207d55071ce221&
247294269552705929216limeytx2020-04-02T17:26:38.6210000-05:00This isn't mine, its a friends who can't afford a new card, so he is wanting to try repair
248194641296529424386canibalcrab2020-04-02T17:41:29.3050000-05:00Can you source the caps?
249194641296529424386canibalcrab2020-04-02T17:41:47.7870000-05:00It looks like they are through hole, so it's possible
250194641296529424386canibalcrab2020-04-02T17:42:07.1670000-05:00But if it's a multi layer board that's going to make it harder to get a good connection
251300080747673288704kenpurcell2020-04-02T17:47:27.0810000-05:00When DMS reopens you should check the surface mount parts reels. I know you are looking for through hole but we may have these. Otherwise Mouser: https://www.mouser.com/ProductDetail/Panasonic/16SEPG270W?qs=sGAEpiMZZMsIwzbKW1rlgT%2FuUXYsF3eFp3kKFppACPaLJLK8zyEYPQ%3D%3D
252188482200658903040skyspook2020-04-02T20:29:50.9610000-05:00Yea, that looks like a multilayer board. Can try replacing the Caps, but if there's internal corrosion it's boned.
253294269552705929216limeytx2020-04-03T17:13:46.6690000-05:00Thanks, yeah the corrosion is my main concern here
254300083517877125121andrew51522020-05-10T12:29:54.1160000-05:00michaelb was kind enough to post this over on Talk https://www.mouser.com/ProductDetail/Vishay-Semiconductors/IRFR9110PBF?qs=%2Fha2pyFadugQQbILjHmoo3kh%2FNLnP4FYxYisnf9PD5yO5Yk6SPESyQ%3D%3D&utm_source=octopart&utm_medium=aggregator&utm_campaign=844-IRFR9110PBF&utm_content=Vishay on my inquiry https://talk.dallasmakerspace.org/t/control-board-component-replacement-dummy-style/71154 and I'm considering it, but I'm wondering if anyone who bops along here more frequently than there might have a suggestion for where to get a few of these little guys (mouser's price is fine, but shipping from or driving to Mansfield isn't...all that palatable...)
255540021655909695488michaelb52502020-05-16T23:36:31.6040000-05:00While y'all were bickering I thought I might try and be productivehttps://cdn.discordapp.com/attachments/300062878676025344/711436969963421727/Capture.PNG?ex=67b9544f&is=67b802cf&hm=8389d64ce1f614f96d17569ea867f69e494e22abb7a2e730bc5bff9530196fe9&
256540021655909695488michaelb52502020-05-16T23:37:01.7280000-05:00Tomorrow we'll see if I'm brave enough to leave that 10mF cap on the output
257263153628141977603kentamanos2020-05-17T00:05:40.6570000-05:00@michaelb what's it do? Is that KiCad?
258540021655909695488michaelb52502020-05-17T00:09:02.0680000-05:00Yeah, it's KiCad, I jumped over from eagle about a year after Autodesk went subscription based. It's got it's quirks but it works fine for the simple stuff I do.
259263153628141977603kentamanos2020-05-17T00:10:14.4380000-05:00yeah, I don't do much, but when I do, I use KiCad. Haven't really done anything in 5 yet.
260540021655909695488michaelb52502020-05-17T00:10:52.2460000-05:00This is a not yet finished 5v power supply, 90-245Vac in. The goal here is 3A continuous output with as small a quiesscent power draw as possible. Hopefully under 0.1W at 240v.
261540021655909695488michaelb52502020-05-17T00:12:45.6540000-05:00Few things are working out if I really need the two giant 270uF input caps, it needs better output capacitance, figure out if it meets inrush specs, and I should probably check the diodes/fet since they're more or less just whatever mouser has the most stock of
262263153628141977603kentamanos2020-05-17T00:13:15.5930000-05:00Having some issues with my current project. trying to use some MOSFET's to convert 3.3v PWM to 5v PWM for a LED strip for this thing: https://talk.dallasmakerspace.org/t/show-and-tell-may-2020/71025/11
263263153628141977603kentamanos2020-05-17T00:14:19.9060000-05:00It's possible I just bought a completely wrong MOSFET (used a IRF520), but I can never get it to switch 5v (it's actually lower than the 3.3v)
264263153628141977603kentamanos2020-05-17T00:14:40.3650000-05:00low frequency PWM too, knocked it down to about 100Hz, no difference
265263153628141977603kentamanos2020-05-17T00:15:31.8650000-05:00I might try to simulate it on LTSpice etc. at some point, but I have to get back up to speed on all that stuff too (including importing a custom model for the part)
266540021655909695488michaelb52502020-05-17T00:19:03.6860000-05:00Yeah that's a power mosfet so it's really designed for a 10v Vgs. Any gate voltage below about 4v and you won't fully turn it on, which makes the design much more complicated.
267263153628141977603kentamanos2020-05-17T00:19:37.1240000-05:00yeah, just randomly Google'd "3.3v pwm to 5v led strip" and I see someone whining about this exact MOSFET: https://www.raspberrypi.org/forums/viewtopic.php?t=261273
268263153628141977603kentamanos2020-05-17T00:20:06.2090000-05:00clearly Mouser gave my newbie ass too many options 🙂
269540021655909695488michaelb52502020-05-17T00:20:29.7240000-05:00If I'm looking for a logic level fet I'll usually pull up the datasheet and look at the Rds(on) parameter. Not the value, but the test conditions. They spec Rds(on) at the Vgs they intend for you to run.
270540021655909695488michaelb52502020-05-17T00:20:52.4170000-05:00Logic level fets will have a spec at Vgs=3.3v for example.
271540021655909695488michaelb52502020-05-17T00:21:38.4950000-05:00And lol what I said earlier really is my method. What do they stock the most of. I.e, I'm not doing something special, and others know better, so what's everyone else buying.
272263153628141977603kentamanos2020-05-17T00:23:19.4600000-05:00yeah, I watched the Digikey video series on KiCad, and when sourcing parts (obviously on Digikey), he just sorted by what they had the most stock of, and his reasoning was they stock what sells...hehe
273540021655909695488michaelb52502020-05-17T00:25:34.2750000-05:00So here's a sparkfun level shifter, they're using a BSS138: http://cdn.sparkfun.com/datasheets/BreakoutBoards/Logic_Level_Bidirectional.pdf If you don't want surface mount, adafruit sells a 'Logic Level N channel fet', the IRLB8721. Obviously mouser sells both parts.
274540021655909695488michaelb52502020-05-17T00:26:19.9520000-05:00Also, that level shifter works in both directions and is a neat little trick with mosfets.
275263153628141977603kentamanos2020-05-17T00:27:52.9560000-05:00I randomly ran across something on Amazon and solder'd one up (I probably need to test connections on it, because I suck at soldering): https://smile.amazon.com/gp/product/B07LG646VS/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1
276263153628141977603kentamanos2020-05-17T00:28:22.8960000-05:00Not sure exactly what mosfet that uses, let me see if I can read it...
277263153628141977603kentamanos2020-05-17T00:32:44.1600000-05:00https://cdn.discordapp.com/attachments/300062878676025344/711451113509093408/IMG_20200517_003011.jpg?ex=67b9617b&is=67b80ffb&hm=08f07fce53c69e873a2b9590f1dc4dcfff22a5ab3a76c45982d74c1fd6c44076&
278263153628141977603kentamanos2020-05-17T00:34:20.9840000-05:00Looks like one of these https://www.ebay.com.au/itm/KSA1298-J1Y-30V-800mA-200mW-PNP-General-Purpose-Silicon-Transistor-SMD-SOT-23-ON-/362722388191
279263153628141977603kentamanos2020-05-17T00:35:33.8220000-05:00https://www.mouser.com/ProductDetail/ON-Semiconductor-Fairchild/KSA1298YMTF?qs=ljbEvF4DwOPmgba0q87XWg%3D%3D
280540021655909695488michaelb52502020-05-17T00:36:18.5580000-05:00That would be surprising. It looks like a copy of the sparkfun circuit (with a different transistor), and I don't think that circuit works with a PNP transistor.
281263153628141977603kentamanos2020-05-17T00:36:42.6700000-05:00I think I got what I paid for on the price etc...hehe
282263153628141977603kentamanos2020-05-17T00:37:07.0320000-05:00good soldering practice for the header pins I guess...I need it 🙂
283263153628141977603kentamanos2020-05-17T00:43:14.7440000-05:00very similar markings on their parts too: https://cdn.sparkfun.com//assets/parts/8/5/2/2/12009-07.jpg
284263153628141977603kentamanos2020-05-17T00:48:23.4430000-05:00hmmm, time to dig thru my bins:https://cdn.discordapp.com/attachments/300062878676025344/711455053009125409/unknown.png?ex=67b96526&is=67b813a6&hm=9e6048d2f1de0374affe7e7f0d0fd1e19c934248dd01982086085a4833c5a758&
285189645236908064768themitch222020-05-17T01:12:46.5760000-05:00I am trying to learn kicad but I need to learn electronics first
286189645236908064768themitch222020-05-17T01:13:02.0290000-05:00I might just start with a simple break out board
287263153628141977603kentamanos2020-05-17T02:41:18.4860000-05:00FWIW later Michael, I found a model and simulated it in LTSpice. 3.3v definitely doesn't fit the bill (blue is voltage at drain, green is PWM of 3.3v):https://cdn.discordapp.com/attachments/300062878676025344/711483470492467210/unknown.png?ex=67b97f9e&is=67b82e1e&hm=80c0c0e4eada1941f363fd09c006070843e9993a1d4041c4ca6d0b73ef2f0b73&
288263153628141977603kentamanos2020-05-17T02:42:17.0980000-05:00I don't seem to get decent results until around 4v:https://cdn.discordapp.com/attachments/300062878676025344/711483716186144778/unknown.png?ex=67b97fd8&is=67b82e58&hm=682b4ea670559807ed34adac611b520532e4f87b0e6ef5f1cb439616d02a0c00&
289263153628141977603kentamanos2020-05-17T02:43:00.2160000-05:00Please excuse my laziness on not putting in a proper schematic symbol for the MOSFET...hehe
290263153628141977603kentamanos2020-05-17T02:49:06.4620000-05:00I'll find a replacement instead of the IRLB8721, because everyone seems to be...
291263153628141977603kentamanos2020-05-17T02:49:16.1920000-05:00outhttps://cdn.discordapp.com/attachments/300062878676025344/711485472328908820/unknown.png?ex=67b9817b&is=67b82ffb&hm=a59caf30576ab083652522b02c7777b6b971756779b9d9fc140e68e198309f80&
292263153628141977603kentamanos2020-05-17T02:49:27.9880000-05:00ofhttps://cdn.discordapp.com/attachments/300062878676025344/711485522333270066/unknown.png?ex=67b98187&is=67b83007&hm=19a95cda0bd0bd4a1e4f877810f599988af5cda1a9c7acadfd802fb105008d49&
293263153628141977603kentamanos2020-05-17T02:49:39.4820000-05:00stockhttps://cdn.discordapp.com/attachments/300062878676025344/711485571020619786/unknown.png?ex=67b98192&is=67b83012&hm=3cb08d67edeeab3d3d123d04d2dbc3682f61d626b99b79fdd014647196f79504&
294263153628141977603kentamanos2020-05-17T02:49:53.0400000-05:00🤣
295540021655909695488michaelb52502020-05-21T09:51:10.9780000-05:00I keep hearing a rumor that electronics has a Flir, any idea what model?
296300080747673288704kenpurcell2020-05-21T10:32:57.9760000-05:00Nope but it lives on the top shelf on the center bench in a black case. Hmm, not on the wiki https://dallasmakerspace.org/wiki/Tools#Electronics
297540021655909695488michaelb52502020-05-21T10:34:40.6720000-05:00Damn. There's a new Flir that's tempting me https://www.flir.com/products/c5/ Was curious what we had at the space.
298300080747673288704kenpurcell2020-05-21T11:05:49.1340000-05:00Ours looks like this model https://www.flir.com/products/tg165/
299300083517877125121andrew51522020-05-21T12:08:01.8910000-05:00This company's name always makes me chuckle, because it's pronounced (as close as matters to me) the same as the Bubble Gum Company Fleer. https://en.wikipedia.org/wiki/Fleer Which immediately causes me to say (usually to myself) "Fleer Funnies - Starring Pud!" https://www.worthpoint.com/worthopedia/1930s-fleer-dubble-bubble-comics-1815862692
300300083517877125121andrew51522020-05-21T12:09:01.0490000-05:00https://www.flickr.com/photos/60585948@N00/6063080592
301547106163842613259nullinterface2020-05-25T17:45:36.2710000-05:00no sympathy for the froghttps://cdn.discordapp.com/attachments/300062878676025344/714610148097785876/unknown.png?ex=67b9aad0&is=67b85950&hm=fc40872d3c6dcdb6050920cbc168e6109ac6d1758851e6069b7b97ecf164af0b&
302540021655909695488michaelb52502020-05-25T18:50:48.9630000-05:00The real tragedy is assuming DC will cause something to 'kick violently'.
303189645236908064768themitch222020-05-25T18:58:32.1320000-05:00You could make a reciprocating motor if you use a reed switch and tie a magnet to the foot
304189645236908064768themitch222020-05-25T18:59:02.5810000-05:00Until the muscles run out of electrolytes and
305540021655909695488michaelb52502020-05-25T19:02:53.6970000-05:00Quick, Erik, if Mitch put a reed switch/magnet on the foot, what value capacitor would I need to put in parallel with the inductor to limit the frog foot vibrations to 10 hurt-z?
306547106163842613259nullinterface2020-05-25T19:53:10.6280000-05:00how fast can someone to open and close the switch? if you incentivize them with money?
307540021655909695488michaelb52502020-05-25T20:06:13.7970000-05:00The inductor and capacitor naturally oscillate so once the switch is opened the foot would convulse a few times at their natural frequency and eventually dissipate all the energy and stop.
308263153628141977603kentamanos2020-05-30T21:28:54.5250000-05:00Opened up an extra remote and repurposing it for home automation usage. Original power was 3v coin cell but tolerates 3.3v just fine. Seen people run them on 5v as well from Arduinos. Sending it serial commands to "press" the buttons right now, but eventually will be REST calls making it open garage, workshop, and gate.https://cdn.discordapp.com/attachments/300062878676025344/716478281771122728/IMG_20200530_212257.jpg?ex=67b93665&is=67b7e4e5&hm=5f63cba4c8607cb9b721cedd04a00ec40b9ddcff865e688234cb142cee02ba8f&❤️ (2)
309456226577798135808Deleted User2020-06-07T09:29:26.5670000-05:00I need help selecting an amp for my new passive speakers. The speakers say the amplifier power should be 10-150 watts. I did some research and an internet guy said you should get 1.5X the wattage for each channel. But he also said to ignore the maximum wattage. So Should I get 15 watts per channel or 225? The speakers have a nominal impedance of 4 ohms, so I think I need to get an amp that does 4 ohms per channel. Here are the specs:https://cdn.discordapp.com/attachments/300062878676025344/719196325505400882/Screenshot_20200607-092904.jpg?ex=67b93686&is=67b7e506&hm=fde852ffb8c58961f7081fd30c5716d2903be32f0456c59c717f7fb1560ceeac&
310456226577798135808Deleted User2020-06-07T09:30:33.1170000-05:00They're the Audioengine HDP6 https://drop.com/buy/audio-engine-p6-speakers?utm_source=appshare&referer=B2E2PV
311130586766754316288peasandclams2020-06-19T17:26:13.1290000-05:00Electronics noob here. I'm on the search for a surface mount 330 ohm resistor. Trying to get a project done before the weekend... ends. Any chance there's somewhere I could source one that soon?
312130586766754316288peasandclams2020-06-19T17:28:12.1200000-05:00Feel free to @ me with suggestions
313540021655909695488michaelb52502020-06-19T17:28:47.3810000-05:00What size?
314130586766754316288peasandclams2020-06-19T17:34:59.1720000-05:00That part I don't think I know.
315130586766754316288peasandclams2020-06-19T17:35:37.5610000-05:00Not sure if this helps, but it's going in a Nintendo DS Litehttps://cdn.discordapp.com/attachments/300062878676025344/723667330764374087/Screenshot_20200619-173514_YouTube.jpg?ex=67b9a878&is=67b856f8&hm=4e39eb493306e040f20a36c9088d2c8bfe54b10018afe1ca60c1999b672089df&
316268944958772215808chocolatelasagna2020-06-22T23:16:13.0420000-05:00Mouser has same day will call pickup
317268944958772215808chocolatelasagna2020-06-22T23:16:48.0930000-05:00Or maybe next day (depends when u get order in). They are cheap so you could buy 3 or 4 sizes
318130586766754316288peasandclams2020-06-22T23:17:44.0540000-05:00:doomthonk: I was looking at ordering them online.
319268944958772215808chocolatelasagna2020-06-22T23:21:02.1130000-05:00Yeah I mean could always get an Amazon kit next day delivered.
320268944958772215808chocolatelasagna2020-06-22T23:21:26.0700000-05:00But yeah idk other than the drive will call is fun , it's like Amazon same day but for silicon 🤓
321268944958772215808chocolatelasagna2020-06-22T23:22:36.9930000-05:00Hell get a thru hole, insulate the leads, solder it in and smash that thing inside the enclosure. BAM surface mount
322130586766754316288peasandclams2020-06-23T09:36:23.5950000-05:00I wound up getting what i needed from a friend.https://cdn.discordapp.com/attachments/300062878676025344/724996280857919618/20200622_185910.jpg?ex=67b93827&is=67b7e6a7&hm=b6ac1f5fd884446a744ff6d836a0ca4f08151ae59357260f542a9cbe2f05815e&
323130586766754316288peasandclams2020-06-23T09:36:30.4120000-05:00Will definitely order some of these though.
324115183069555589125aceat642020-06-24T23:31:55.3210000-05:00I need to drain a 12v car battery down to 10v, any suggestions on how to do that without having to periodically check on it?
325540021655909695488michaelb52502020-06-24T23:33:01.9500000-05:00Lol uhhh... odd
326540021655909695488michaelb52502020-06-24T23:33:26.8910000-05:00There's an electronic load in science that can probably do that. Set a current limit, constant voltage mode for 10v.
327115183069555589125aceat642020-06-24T23:38:49.4410000-05:00the manufacturer wants me to do it to recondition the battery
328115183069555589125aceat642020-06-24T23:39:02.2460000-05:00it's a deep cycle AGM
329540021655909695488michaelb52502020-06-24T23:49:16.6830000-05:00Ahh well yeah I'd set up the load for a current limit of like 0.5 or 1C, constant voltage of 10v and let it run.
330540021655909695488michaelb52502020-06-24T23:49:53.0560000-05:00I said science. I meant electronics. Big black 4U rack mount unit on the shelves near the personal storage bin. BK Precision something or other.
331115183069555589125aceat642020-06-24T23:51:43.6750000-05:00cool
332316809616828923904hon1nbo2020-06-25T01:06:36.5610000-05:00Yeah that load tester unit is awesome and perfect for something like that
333188482200658903040skyspook2020-06-25T10:50:36.4730000-05:00A proper deep cycle charger should have a recondition cycle you can run that should do the same thing
334540021655909695488michaelb52502020-07-01T23:22:26.6420000-05:00This time the bickering was long enough I actually started a layout. Toying with using some scrap IGBT modules as a load bank.https://cdn.discordapp.com/attachments/300062878676025344/728103268244520960/Capture.PNG?ex=67b95102&is=67b7ff82&hm=e557baca17dbb5a30ba38326b9570dbddc9a8f96e9c472c2004dae05e89705fe&
335263153628141977603kentamanos2020-07-02T00:19:54.3700000-05:00I have kind of a stupid electronics question: can you buy small pre-made electromagnets? Basically a small piece of ferrous metal wrapped in "magnet wire". I have an idea for something I want to try out, but I might not want to hand wrap LOTS of them myself. I've read about some people trying to use inductors for such a job, but having a hard time telling if that really works. It's also a seemingly hard thing to Google successfully or find on Mouser. Technically this could be called a solenoid I THINK, but most of those results include the moving actuator type piece.
336188482200658903040skyspook2020-07-02T08:09:09.2240000-05:00Try searching for "holding magnet"
337188482200658903040skyspook2020-07-02T08:09:54.3010000-05:00Or similar. I see adafruit sells some, and ebay has similar. Depends on what holding force you need
338547106163842613259nullinterface2020-07-02T08:42:27.8720000-05:00solenoids are going to be optimized for moving the plunger
339547106163842613259nullinterface2020-07-02T09:07:14.2250000-05:00generally a hollow form with a sprung ferrous mass that pulls the mass into it against the spring with the actuator itself being pulled in or pushed out depending on orientation
340263153628141977603kentamanos2020-07-02T09:59:37.2530000-05:00@ESmith Ah, "plunger" is a better term. The weird part seems to be TECHNICALLY a solenoid doesn't have to include that plunger but all the practical searches for that word include it. I think I need very little force, but a lot of them. I'm thinking about using them to push away a permanent magnet for a "pen up" operation on a polar bot type plotter (like Brandon's Gocupi back in the day). @Skyspook I'll look around for "holding magnets" and that seems to be a better search term, but the combination of size and prize might scare me off. I don't think need them to be as strong as most offerings etc. and might just have to wind my own (which would be a lot of them if they seem like they'd work).
341547106163842613259nullinterface2020-07-02T10:02:44.4040000-05:00solenoids are generally used for short linear *binary* motion applications - power door locks, car starters, appliance safety locks, sprinkler valves - thus the plunger is a natural accessory
342547106163842613259nullinterface2020-07-02T10:07:07.7400000-05:00a bit lost on your desire to push a magnet around when a more conventional plunger seems simpler and likely to fit within turnkey solutions out there in the market
343547106163842613259nullinterface2020-07-02T10:08:21.1990000-05:00most solenoids that I've seen are of two styles: cylindrical or square. both concentrate the magnetic field inside the housing containing the windings.
344547106163842613259nullinterface2020-07-02T10:10:40.8970000-05:00in a previous career I designed some gear that used solenoids for pneumatic valves as well as releasing spring-loaded catches
345547106163842613259nullinterface2020-07-02T10:12:45.6160000-05:00rotary actuators are another style I occasionally considered; they spare the designer the need to devise a mechanism to shoehorn a linear solenoid into such an application
346547106163842613259nullinterface2020-07-02T10:13:28.1500000-05:00I recall they also applied force more predictably and more consistently through the range of motion
347547106163842613259nullinterface2020-07-02T10:13:34.0670000-05:00anyway - I'm babbling
348263153628141977603kentamanos2020-07-02T11:00:54.9070000-05:00Ideally, I want it to be physically contact free. Most people do the "pen up" with a servo for instance (and a solenoid could also be used here), but that servo "scratches" previous dry erase work while it moves around (even if it has a very small contact point). Would be cool to push it away by ramping up electromagnets (not really levitating, just pushing away from the mostly vertical board) and then bring it back down by ramping electromagnets back down. This also means no power wires running to the stylus (or batteries) for a solenoid/servo. Not sure of the practicality overall, but I want to try an array of these magnets for this job.
349547106163842613259nullinterface2020-07-02T11:24:51.1560000-05:00if you're not manipulating the pen up/down electrically then how are you doing it?
350263153628141977603kentamanos2020-07-02T11:38:17.6450000-05:00electromagnets behind the board in theory repulsing a permanent magnet. No idea if it will work etc, but want to try it.
351263153628141977603kentamanos2020-07-02T11:38:44.6870000-05:00would in theory cause it to swing away, allow it to move and then come back down
352263153628141977603kentamanos2020-07-02T11:39:22.8190000-05:00it's either this or compressed air on the stylus...hehe
353300080747673288704kenpurcell2020-07-02T11:45:51.9650000-05:00??? Magnetic sheet behind the board with one electromagnet on the draw head, or permanent magnet on drawing head and a ton of electromagnets behind the board?
354300080747673288704kenpurcell2020-07-02T11:47:19.9770000-05:00sounds similar in idea of flip discs that have a tiny electromagnet to swap contrasting sides.
355547106163842613259nullinterface2020-07-02T12:02:39.6140000-05:00now the need for a great quantity of electromagnets makes sense
356570472690541002764hardsuit2020-07-02T12:20:32.6600000-05:00Thus is reminding me of a coffee table concept I want to build
357570472690541002764hardsuit2020-07-02T12:20:50.0420000-05:00Glass top, and has a dungeon maze diorama inside
358263153628141977603kentamanos2020-07-02T12:21:19.8920000-05:00@Lampy (Ken Purcell) 2nd one, small permanent on the stylus and an array I can potentially activate groups of magnets behind the board. Very similar to those sorts of displays etc.
359570472690541002764hardsuit2020-07-02T12:21:46.9150000-05:00Have a 2 axis arm underneath to magnetically move around monster and adventurer mini figs
360263153628141977603kentamanos2020-07-02T12:22:32.5320000-05:00yeah, I have considered a "mirror stylus" so to speak behind the board I could activate like that
361263153628141977603kentamanos2020-07-02T12:22:53.1980000-05:00could hook up to the same motors etc. and therefore be in the same spot
362263153628141977603kentamanos2020-07-02T12:23:02.1200000-05:00that's starting to sound better 🙂
363263153628141977603kentamanos2020-07-02T12:23:25.5640000-05:00makes the whole thing a bit thicker though
364263153628141977603kentamanos2020-07-02T12:23:42.2380000-05:00(deeper might be better word here)
365263153628141977603kentamanos2020-07-02T12:24:50.1950000-05:00fairly sure I couldn't make a huge electromagnet the size of the entire white board and get the results I want, right?
366300080747673288704kenpurcell2020-07-02T12:34:30.6810000-05:00hm interesting. Take some masonite pegboard, press in some metal sleeves and wind magnet wire around each pin. Wonder if you could weave it like core memory and have it work.
367263153628141977603kentamanos2020-07-02T12:41:13.6500000-05:00that's a good idea too. Much more scalable than what I was thinking
368300080747673288704kenpurcell2020-07-02T12:52:10.0630000-05:00just the "resolution" is fixed by the pegboard unless you drill your own on smooth masonite
369263153628141977603kentamanos2020-07-02T12:52:44.3990000-05:00yeah, I think I just need to buy a crapload of "magnet wire" for now 😉
370263153628141977603kentamanos2020-07-02T12:52:53.3760000-05:00at least that's cheap
371300084800373391361slinkygn2020-07-09T10:37:20.1710000-05:00on the unlikely off chance that anybody knows off the top of their heads: in our random piles of SMD tape, are there any 0605 (or within spitting distance of) RGB LEDs?
372300084800373391361slinkygn2020-07-09T10:37:52.6790000-05:00A couple of them died out on a project board I have, and I'd rather pay the bin than drive all the way down to Mouser for 2 bucks worth of parts 🙂
373300084800373391361slinkygn2020-07-09T10:38:21.9890000-05:001615, if you prefer what some would call non-moonwalker units 🙂
374189645236908064768themitch222020-07-09T12:00:57.0630000-05:00Not addressable?
375189645236908064768themitch222020-07-09T12:02:12.5300000-05:00From my understanding there is not really an organization of the smd reels in electronics. I'm sure if someone volunteered to do that, it would help.
376300080747673288704kenpurcell2020-07-09T13:16:59.2410000-05:00^ no org of most parts. Never saw addressable LEDs when we first got the donation.
377263153628141977603kentamanos2020-07-09T13:20:45.8380000-05:00is common anode vs common cathode also a thing in that sort of package?
378300080747673288704kenpurcell2020-07-09T13:22:01.7850000-05:00I usually only saw that in the four pin 10mm round packages
379300080747673288704kenpurcell2020-07-09T13:22:34.4610000-05:00Always bought the wrong version
380300084800373391361slinkygn2020-07-09T21:10:16.1850000-05:00yes, nonaddressable -- just dumb RGB LEDs, I don't need controllers embedded or otherwise 🙂 I'm not sure I've ever seen an 0605 addressable RGB LED!
381300084800373391361slinkygn2020-07-09T21:11:30.4760000-05:00And yes, most of those SMD reels have been strewn about the Electronics space since basically the dawn of time 🙂 I kinda figured it would just be dumb luck if somebody had bothered to sift through them at some point, likely looking for something else, and happened to have seen them.
382540021655909695488michaelb52502020-07-10T22:34:35.0390000-05:00https://cdn.discordapp.com/attachments/300062878676025344/731352714021437440/20200710_223352.gif?ex=67b945ca&is=67b7f44a&hm=33fc11da02bc81817f39663ef323526717339f779ab27d0308ba312c1a31b70d&🧐 (1)
383540021655909695488michaelb52502020-07-10T22:35:08.3630000-05:00Remember, always be filming when you flip the switch.
384540021655909695488michaelb52502020-07-10T22:35:49.7530000-05:00I've since fixed the explody bit, this was a one off.
385300083517877125121andrew51522020-07-10T22:35:58.4010000-05:00youuuuuuuuuu sunk my battleship?
386189645236908064768themitch222020-07-10T23:45:02.3640000-05:00@michaelb Electroboom re-enactment?
387540021655909695488michaelb52502020-07-11T00:49:09.2300000-05:00Unintentionally, yeah 😂
388316809616828923904hon1nbo2020-07-13T08:20:32.7710000-05:00https://cdn.discordapp.com/attachments/300062878676025344/732224951620468756/IMG_20200713_081512.jpg?ex=67b92660&is=67b7d4e0&hm=3e45f6ca1b891e958f0e55677157404bb48074adb6dfad0089ef685faa4f8f92&
389316809616828923904hon1nbo2020-07-13T08:20:33.0860000-05:00IR surface mount solder flow machine
390316809616828923904hon1nbo2020-07-13T08:20:33.4750000-05:00All functional except monitor has faded output but readable
391316809616828923904hon1nbo2020-07-13T08:20:35.1920000-05:00$500
392316809616828923904hon1nbo2020-07-13T08:20:38.4160000-05:00Has to go this week
393300084800373391361slinkygn2020-07-13T22:30:42.6100000-05:00oh, man
394300084800373391361slinkygn2020-07-13T22:30:55.4920000-05:00is it too late for electronics to petition for more space? 😆
395529874076752150539judykriehn37272020-07-13T22:47:25.0490000-05:00Shut up. You'll start Art harping about moving the personal storage bins again. When THERE ISN'T ANYWHERE TO MOVE THEM. Not that I'm bitter or anything.👆 (1)
396194641296529424386canibalcrab2020-07-13T22:50:14.0390000-05:00also as much as that would be cool, its limited use to the space as a whole. like the pick and place machines
397316809616828923904hon1nbo2020-07-13T23:13:06.8000000-05:00indeed
398316809616828923904hon1nbo2020-07-13T23:13:11.9210000-05:00more if someone personally is interested
399316809616828923904hon1nbo2020-07-13T23:13:22.2580000-05:00and is willing to run a 60A 208 3ph circuit for it
400300084800373391361slinkygn2020-07-14T07:54:54.7040000-05:00You shouldn't say that. I meet both those criteria. 😁
401300084800373391361slinkygn2020-07-14T07:56:02.9170000-05:00I mean, I bet within a month we could get more people using it than have been certified on and able to use the HAAS over the past year... 😁
402540021655909695488michaelb52502020-07-14T08:59:13.0020000-05:00https://cdn.discordapp.com/attachments/300062878676025344/732597068056625282/e02e5ffb5f980cd8262cf7f0ae00a4a9_press-x-to-doubt-memes-memesuper-la-noire-doubt-meme_419-238.jpg?ex=67b92f70&is=67b7ddf0&hm=c517da54dfaed952ffa6295e08d9fcc0c80c70df13d1e569a1df6efc1b1f5657&
403540021655909695488michaelb52502020-07-14T09:02:55.8610000-05:00We already have a reflow oven in electronics, not sure why we'd need a second one.
404300080747673288704kenpurcell2020-07-14T09:10:11.0610000-05:00🏆 Especially when we have already handled much of the very $$$ electrical work.
405316809616828923904hon1nbo2020-07-14T11:01:03.4850000-05:00> We already have a reflow oven in electronics, not sure why we'd need a second one. @michaelb we do? Where? Is it buried under the mountain of black and yellow bins?
406540021655909695488michaelb52502020-07-14T11:10:31.6810000-05:00It's an already-modified T962A sitting on top of the workbench next to the wire shelves.
407300084800373391361slinkygn2020-07-14T12:18:53.0440000-05:00https://imgur.com/gallery/rYd4I/comment/1227577419
408300084800373391361slinkygn2020-07-14T12:24:43.2920000-05:00Comparing an ETS conveyor machine to a T962A is comparing a Haas to (edit) an X-carve
409540021655909695488michaelb52502020-07-14T12:30:37.8970000-05:00I mean those are indeed two CNCs
410540021655909695488michaelb52502020-07-14T12:31:12.2590000-05:00Purchasing a Haas when you don't even use your X-carve is a pretty big waste of money.
411300084800373391361slinkygn2020-07-14T12:33:57.6820000-05:00If you have stuff you can do with the X-carve, sure -- but that's not usually how people buy stuff.
412300084800373391361slinkygn2020-07-14T12:34:12.5470000-05:00You have a need, so you buy the thing that fits it -- not you buy a thing and hope your need fits it.
413300084800373391361slinkygn2020-07-14T12:34:34.5330000-05:00Purchasing an X-carve because you want to mill billet aluminum but can't afford a Haas is a pretty big waste of money.
414300084800373391361slinkygn2020-07-14T12:35:19.4820000-05:00The two aren't actually comparable.
415540021655909695488michaelb52502020-07-14T12:36:07.4650000-05:00You can, if it's the only tool you have, well you might as well try. Having the shiny toys doesn't make you any better at doing something.
416540021655909695488michaelb52502020-07-14T12:36:39.0360000-05:00Fact is, we have a reflow oven. It's the right price and size for us. We have no need for a large commercial oven
417540021655909695488michaelb52502020-07-14T12:37:48.7320000-05:00Waiting for it to heat up, having to panelize your PCBs so they fit in the conveyor, taking up all that space in an already crowded committee area, which one of these are the benefits that you think the large machine will bring us?
418540021655909695488michaelb52502020-07-14T12:39:27.5790000-05:00As for your 'more people will use this than use the Haas' comment, many more requests show up for the Haas on talk. I see many more people using it. Many more people have projects on the Haas.
419540021655909695488michaelb52502020-07-14T12:40:28.7690000-05:00There's only a small portion of the space that would even have a project that requires a reflow oven. So much so that people don't even ask if we have one or how to use it.
420300084800373391361slinkygn2020-07-14T14:54:17.5490000-05:00That's highly unlikely, considering how few people are certified on the HAAS and the fact that it is (supposed to be?) keylocked out. So if you're seeing all that many people using it they probably need to be reported.
421300084800373391361slinkygn2020-07-14T14:55:07.9410000-05:00Last I checked the AD list and crossed it with active members, I think I got a result set 2 long.
422300084800373391361slinkygn2020-07-14T14:56:55.2350000-05:00Whereas people may not ask about the reflow oven is because many people check the official reference for the tools available in e-lab -- in which the reflow oven isn't listed.
423300084800373391361slinkygn2020-07-14T14:57:48.6510000-05:00That list has in recent history (1-2yrs or so) been pretty well kept up, at least compared to other committees. Anything that wasn't on there was usually broken.
424300084800373391361slinkygn2020-07-14T14:58:22.2550000-05:00Which, as a matter of fact, was the state of the reflow oven we had there a few years back. I assume the one we're talking about isn't the same one? Or it got fixed, or something?
425300084800373391361slinkygn2020-07-14T14:58:49.7690000-05:00I would imagine it's a different one, as the old one was a member's, I think.
426540021655909695488michaelb52502020-07-14T14:58:49.8000000-05:00Many more than two people are currently trained on the Haas.
427540021655909695488michaelb52502020-07-14T14:59:07.8690000-05:00Let me ask you this, how many projects do you know of that required a reflow oven?
428300084800373391361slinkygn2020-07-14T14:59:08.3540000-05:00Trained and active, is what I checked.
429316809616828923904hon1nbo2020-07-14T14:59:16.5030000-05:00AD does not have the Haas user list
430316809616828923904hon1nbo2020-07-14T14:59:19.6210000-05:00it never has
431316809616828923904hon1nbo2020-07-14T14:59:25.5230000-05:00it has those who have taken the classes
432316809616828923904hon1nbo2020-07-14T14:59:31.2820000-05:00but not those who completed the practical
433300084800373391361slinkygn2020-07-14T14:59:34.2970000-05:00Require? Few. Could use? Every single PCB project that goes through the E-lab.
434316809616828923904hon1nbo2020-07-14T14:59:44.7730000-05:00the Haas RFID lockout was made before the AD list and integration was setup
435316809616828923904hon1nbo2020-07-14T14:59:54.6310000-05:00it uses an offline BeagleBone with an internal RFID database
436316809616828923904hon1nbo2020-07-14T15:00:05.3310000-05:00it's never been transitioned to anything else
437540021655909695488michaelb52502020-07-14T15:00:05.8690000-05:00😂😂 well that's just wrong.
438300084800373391361slinkygn2020-07-14T15:00:10.5550000-05:00It has like four different HAAS groups. And again, HAAS at least used to be keylocked against one of those AD lists.
439316809616828923904hon1nbo2020-07-14T15:00:18.9440000-05:00dude, I'm the admin over AD
440316809616828923904hon1nbo2020-07-14T15:00:25.7520000-05:00those AD groups aren't the actual operators groups
441300084800373391361slinkygn2020-07-14T15:00:36.6760000-05:00There was a sync between Beagle one and that.
442316809616828923904hon1nbo2020-07-14T15:00:36.7540000-05:00and I literally was working on its beaglebone the other daty
443316809616828923904hon1nbo2020-07-14T15:00:41.3810000-05:00no, there isn't
444316809616828923904hon1nbo2020-07-14T15:00:44.0460000-05:00they're manually added
445540021655909695488michaelb52502020-07-14T15:00:57.1810000-05:00Barely any pcbs that go through DMS could even use a commercial reflow oven. I doubt many could use the desktop one.
446316809616828923904hon1nbo2020-07-14T15:01:00.3090000-05:00we in fact have a student that can't be added right now because the instructor couldn't SSH into the unit
447316809616828923904hon1nbo2020-07-14T15:01:06.2300000-05:00since they have to be added manually
448300084800373391361slinkygn2020-07-14T15:01:18.9880000-05:00Are you positive? When I worked on the Chinese entry system I was pretty sure I was sitting on the code that synced that.
449316809616828923904hon1nbo2020-07-14T15:01:29.5330000-05:00positive
450316809616828923904hon1nbo2020-07-14T15:01:34.1470000-05:00literally the person that runs the network right now
451300084800373391361slinkygn2020-07-14T15:01:38.7210000-05:00Fair enough.
452316809616828923904hon1nbo2020-07-14T15:01:41.3970000-05:00sets up our current gen interlocks
453300084800373391361slinkygn2020-07-14T15:01:43.4640000-05:00I know, Jim. :)
454316809616828923904hon1nbo2020-07-14T15:01:45.4110000-05:00and is a machine shop teacher
455316809616828923904hon1nbo2020-07-14T15:02:12.2220000-05:00the code for the chinese system pushes stuff from MM to the door controllers internal database
456316809616828923904hon1nbo2020-07-14T15:02:22.1650000-05:00but the BB isn't on that and doesn't support it with the existing code
457300084800373391361slinkygn2020-07-14T15:02:29.7220000-05:00I am having trouble imagining a PCB project that couldn't use a reflow oven.
458300084800373391361slinkygn2020-07-14T15:02:39.6690000-05:00What, are people allergic to solder paste?
459300084800373391361slinkygn2020-07-14T15:03:06.2430000-05:00No, of course not. This was years ago when we were trying to integrate the new system in.
460540021655909695488michaelb52502020-07-14T15:03:08.3030000-05:00People are allergic to surface mount for one
461300084800373391361slinkygn2020-07-14T15:03:09.2810000-05:00New back then.
462540021655909695488michaelb52502020-07-14T15:03:29.8180000-05:00Kit PCBs don't come panelized to fit through a commercial oven.
463300084800373391361slinkygn2020-07-14T15:03:40.2860000-05:00I've seen *plenty* of SMD projects in e-lab.
464300084800373391361slinkygn2020-07-14T15:03:52.1480000-05:00You think that hot air tool goes unused?
465540021655909695488michaelb52502020-07-14T15:04:13.0210000-05:00It's not worth the trouble to run up such a big oven for your one board.
466300084800373391361slinkygn2020-07-14T15:04:17.6960000-05:00Anything that can use the hot air tool can use the toy reflow oven.
467540021655909695488michaelb52502020-07-14T15:04:33.3590000-05:00But not the giant one you want.
468316809616828923904hon1nbo2020-07-14T15:04:48.6640000-05:00there's a difference between a hobby scale reflow oven and a conveyor system
469316809616828923904hon1nbo2020-07-14T15:04:54.8340000-05:00meant for assembly lines
470300084800373391361slinkygn2020-07-14T15:05:46.9130000-05:00Okay, I'm getting whiplash here. Two arguments at once is enough, I'm not gonna do three. Are you standing by the statement that nobody does nearly anything that could use the reflow oven presently there? Or are you criticizing the desire for the big oven?
471540021655909695488michaelb52502020-07-14T15:05:47.7320000-05:00It's not going to be any faster if you're doing multiple anyways. You'll still be hand printing paste and hand placing components.
472540021655909695488michaelb52502020-07-14T15:06:46.3320000-05:00Alright, let's pick one. We don't need to replace our desktop over a commercial one.
473540021655909695488michaelb52502020-07-14T15:06:53.0930000-05:00And go.
474300084800373391361slinkygn2020-07-14T15:07:00.9620000-05:00We also used to have a small pick-n-place machine in there.
475300084800373391361slinkygn2020-07-14T15:07:08.6100000-05:00Oh, that's easy.
476300084800373391361slinkygn2020-07-14T15:07:50.2890000-05:00Read back at my "requests" that we pick it up, and "request" that we expand the E-lab space for it, and look at all the laugh emoji by them.
477540021655909695488michaelb52502020-07-14T15:08:36.7880000-05:00You mean your claim that it'll get more use than the Haas?
478540021655909695488michaelb52502020-07-14T15:08:56.6830000-05:00Oh is this going to be one of those 'I won't admit I'm wrong so I'll just play like it was sarcasm' things?
479540021655909695488michaelb52502020-07-14T15:08:59.6510000-05:00Let's find out.
480300084800373391361slinkygn2020-07-14T15:09:05.6950000-05:00And realize when you took something WAY too seriously - and expanded that to a scope where there *is* a legitimate argument against what you're saying, which is that a reflow oven would nearly never be used.
481316809616828923904hon1nbo2020-07-14T15:09:20.9790000-05:00no one has said a reflow oven would never be used
482300084800373391361slinkygn2020-07-14T15:09:30.3530000-05:00Did you notice the emoji attached to that claim too? Or are you intentionally being obtuse.
483316809616828923904hon1nbo2020-07-14T15:09:31.7150000-05:00the statement has always been said "conveyor" system
484488485682184978442yashsedai2020-07-14T15:09:32.5400000-05:00omg more pedant competition
485300084800373391361slinkygn2020-07-14T15:09:43.0070000-05:00Nearly never? Yes, he did, nearly verbatim.
486300084800373391361slinkygn2020-07-14T15:09:45.0820000-05:00And repeatedly.
487316809616828923904hon1nbo2020-07-14T15:09:45.2760000-05:00I know, seems like there's been stiff competition for the big D
488316809616828923904hon1nbo2020-07-14T15:09:49.3230000-05:00except he didn't
489316809616828923904hon1nbo2020-07-14T15:09:54.3610000-05:00quote it
490316809616828923904hon1nbo2020-07-14T15:09:57.2380000-05:00with context
491316809616828923904hon1nbo2020-07-14T15:10:06.2810000-05:00showing that he wasn't talking about that large commercial conveyor unit
492300084800373391361slinkygn2020-07-14T15:10:08.0020000-05:00Seriously?
493300084800373391361slinkygn2020-07-14T15:10:20.8920000-05:00Sure.
494540021655909695488michaelb52502020-07-14T15:10:42.4660000-05:00> Ahh yes, the good old 'it was just sarcasm dude' defense.
495300084800373391361slinkygn2020-07-14T15:10:42.8450000-05:00> Fact is, we have a reflow oven. It's the right price and size for us. We have no need for a large commercial oven @michaelb > Let me ask you this, how many projects do you know of that required a reflow oven? @michaelb
496300084800373391361slinkygn2020-07-14T15:10:56.3560000-05:00Skipped one
497488485682184978442yashsedai2020-07-14T15:11:08.8090000-05:00omg nobody cares
498300084800373391361slinkygn2020-07-14T15:11:17.3950000-05:00> There's only a small portion of the space that would even have a project that requires a reflow oven. So much so that people don't even ask if we have one or how to use it. @michaelb
499316809616828923904hon1nbo2020-07-14T15:11:22.0870000-05:00> Fact is, we have a reflow oven. It's the right price and size for us. We have no need for a large commercial oven @michaelb this for context
500540021655909695488michaelb52502020-07-14T15:11:23.7260000-05:00If you read what I said, 'We already have a reflow oven, don't know why we'd need a second one' At which point you came at me for trying to compare the two.💯 (1)
501300084800373391361slinkygn2020-07-14T15:11:35.8650000-05:00"a reflow oven" was always used to include the small one.
502488485682184978442yashsedai2020-07-14T15:11:53.7770000-05:00where is my low orbit ion cannon when i need itdumpsterfire (1)
503300084800373391361slinkygn2020-07-14T15:11:59.9840000-05:00Conveyor was specifically used to talk about the big one, yes, as was "the large machine."
504300084800373391361slinkygn2020-07-14T15:12:06.4690000-05:00It was always specified.
505300084800373391361slinkygn2020-07-14T15:13:00.9670000-05:00> If you read what I said, 'We already have a reflow oven, don't know why we'd need a second one' At which point you came at me for trying to compare the two. @michaelb no, you wrote six more messages after that. I quoted the most relevant ones.
506316809616828923904hon1nbo2020-07-14T15:13:22.2630000-05:00and like we've said, we have no use for the large machine. we've never said we do zero reflow work or it's not useful to have at all
507300084800373391361slinkygn2020-07-14T15:13:25.3180000-05:00I could quote the entire thing, if you like. Or you could just reread it.
508300084800373391361slinkygn2020-07-14T15:13:29.3400000-05:00Of course we don't.
509316809616828923904hon1nbo2020-07-14T15:13:31.7980000-05:00but to say we can justify a large commercial unit is just laughable
510300084800373391361slinkygn2020-07-14T15:13:51.9520000-05:00Nobody did, Jim.
511316809616828923904hon1nbo2020-07-14T15:14:06.4040000-05:00@michaelb has constantly been refuting how people won't want to panelize their small hobby projects for a conveyor, we have a unit that's the right size for us, etc
512540021655909695488michaelb52502020-07-14T15:14:16.4510000-05:00I did re-read it, I made that one statement, and then you started talking this crap about Haas vs X-Carve
513300084800373391361slinkygn2020-07-14T15:14:29.8880000-05:00Christ.
514300084800373391361slinkygn2020-07-14T15:14:38.2270000-05:00With a Crocodile Dundee meme.
515300084800373391361slinkygn2020-07-14T15:14:43.5300000-05:00CLEARLY SUPER SERIOUS
516316809616828923904hon1nbo2020-07-14T15:14:53.1060000-05:00whatever, I'm done. wants to argue for the sake of arguing because we won't get a stupid piece of machinery that's useless for a makerspace
517300084800373391361slinkygn2020-07-14T15:15:09.6080000-05:00No, he didn't even mention panelizing until about 15 minutes ago, Jim. What have you been reading?
518316809616828923904hon1nbo2020-07-14T15:15:10.8400000-05:00clearly knows how the other equipment here works, totally doesn't need to listen to us
519540021655909695488michaelb52502020-07-14T15:15:20.0390000-05:00Ahh, again 'lol dude chill it was only sarcasm!' said after three pages of argument. 🙄
520316809616828923904hon1nbo2020-07-14T15:15:26.3160000-05:00lawl the entire argument? I posted the original link
521300084800373391361slinkygn2020-07-14T15:15:28.5970000-05:00Other than that part I quoted.
522316809616828923904hon1nbo2020-07-14T15:15:50.5160000-05:00and Michael was with me are the warehouse that had it
523316809616828923904hon1nbo2020-07-14T15:15:59.2560000-05:00literally the start of the discussion
524316809616828923904hon1nbo2020-07-14T15:16:10.8210000-05:00anyway I'm done; getting close to D levels of pedantry
525456226577798135808Deleted User2020-07-14T15:16:16.0650000-05:00> I mean, I bet within a month we could get more people using it than have been certified on and able to use the HAAS over the past year... 😁 @slinkygn (George) really seems like this all came about because you misunderstood HAAS permissions...
526300084800373391361slinkygn2020-07-14T15:16:21.1250000-05:00Sorry, lost connectivity for about 60secs there, catching up.
527300084800373391361slinkygn2020-07-14T15:16:36.3510000-05:00Really, the grin didn't give anything away?
528456226577798135808Deleted User2020-07-14T15:16:42.6750000-05:00nope
529300084800373391361slinkygn2020-07-14T15:17:13.7960000-05:00That was a crack on the fact that we haven't been able to recruit HAAS trainers, which has been a problem for literally years. Which you should know perfectly well, Jim.
530300084800373391361slinkygn2020-07-14T15:17:31.5970000-05:00Sorry, that wasn't Jim. Speed reading.
531540021655909695488michaelb52502020-07-14T15:17:33.8750000-05:00We have 3 or 4 people teaching the Haas right now.
532540021655909695488michaelb52502020-07-14T15:17:42.4950000-05:00You really need to chill until you get up to date.
533300084800373391361slinkygn2020-07-14T15:18:50.6330000-05:00Trust me, the one putting in emoji and Crock Dundee memes didn't need to chill. Then, anyway. Because he wasn't seriously advocating for a tool that would literally take up half of E-lab to be brought in.
534300084800373391361slinkygn2020-07-14T15:19:45.9260000-05:00And if anyone unclear on obviously sardonic statements had, say, *asked if I was serious* instead of presuming a call to war and overstating their case, this would certainly have been avoided.
535300084800373391361slinkygn2020-07-14T15:20:37.0160000-05:00Maybe a class on 3d printing paste screens based off kicad plans is what's needed here. Who knows.
536300084800373391361slinkygn2020-07-14T15:20:56.6440000-05:00Aka
537456226577798135808Deleted User2020-07-14T15:21:04.8320000-05:00So why are you so triggered now if it's all a joke?
538300084800373391361slinkygn2020-07-14T15:21:20.5620000-05:00@yashsedai I think I found your low orbital ion cannon when I found who shot Crocodile Dundee.
539316809616828923904hon1nbo2020-07-14T15:21:23.7710000-05:00*metaphorically; it would not literally take up half the e-lab and yet kept justifying how it would get more use than the haas, clearly showing a lack of understanding on how our tools are used, claiming the haas doesn't have teachers. Like you keep justifying the machine, yet claiming you're just being sarcastic (sorry, couldn't resist chiming back in. really wish I had some popcorn here)
540540021655909695488michaelb52502020-07-14T15:21:29.2640000-05:00Sorry, I forgot. It was always a joke now that you've lost the argument.
541300084800373391361slinkygn2020-07-14T15:21:51.0190000-05:00Seriously, memes and emoji.
542300084800373391361slinkygn2020-07-14T15:22:03.5370000-05:00I never justified how it would get more use than the HAAS, even.
543316809616828923904hon1nbo2020-07-14T15:22:09.6390000-05:00I mean, if they were said alone that's one thing.... but you kept pushing it
544300084800373391361slinkygn2020-07-14T15:22:12.1830000-05:00I just stayed it would.
545316809616828923904hon1nbo2020-07-14T15:22:14.8970000-05:00as a serious argument
546300084800373391361slinkygn2020-07-14T15:22:16.2230000-05:00*stated
547540021655909695488michaelb52502020-07-14T15:22:17.3740000-05:00Well neither of us treated it like a joke, so was it really a joke?
548540021655909695488michaelb52502020-07-14T15:22:24.0990000-05:00No
549316809616828923904hon1nbo2020-07-14T15:22:31.4560000-05:00onlookers here does this seem like a joke?
550300084800373391361slinkygn2020-07-14T15:22:59.4600000-05:00My suggestion was a joke. You treated it as not a joke, and in that process said nobody would use a reflow oven. I disagreed.
551194641296529424386canibalcrab2020-07-14T15:23:07.2820000-05:00Calm down nerds
552194641296529424386canibalcrab2020-07-14T15:23:34.6910000-05:00I see slinky trying to defuse and others berating them
553300084800373391361slinkygn2020-07-14T15:23:51.6670000-05:00> So why are you so triggered now if it's all a joke? @Deleted User > Sorry, I forgot. It was always a joke now that you've lost the argument. @michaelb You guys have fun deciding whether you want to argue if I currently think it's a joke or it's not.
554194641296529424386canibalcrab2020-07-14T15:23:59.0430000-05:00Everyone just run off to another channel and forget it
555300084800373391361slinkygn2020-07-14T15:24:06.5250000-05:00Pushing what as a serious argument?
556540021655909695488michaelb52502020-07-14T15:24:20.2070000-05:00But pearce this is so much more fun!
557300084800373391361slinkygn2020-07-14T15:24:23.9090000-05:00I'll be happy to drop it once I know what words are being put iny mouth.
558300084800373391361slinkygn2020-07-14T15:24:40.6200000-05:00The serious argument would be, the reflow oven would get used.
559262734618447446016draco_the_drake2020-07-14T15:24:40.7240000-05:00I think we should have a small reflow oven if we don't already have one
560540021655909695488michaelb52502020-07-14T15:24:56.8800000-05:00We do, draco, we do.
561488485682184978442yashsedai2020-07-14T15:24:58.1240000-05:00https://cdn.discordapp.com/attachments/300062878676025344/732694149777850408/spongebob.jpg?ex=67b989da&is=67b8385a&hm=94d85bf8dda3c878443b25da483ba2b3a0c5f21bc83750854896915db5a38c5e&
562300084800373391361slinkygn2020-07-14T15:25:35.1450000-05:00There's one in there. Still hoping for an answer if it's the 4yo one that isn't listed on the equipment list because it's broken or if it's a new one.
563540021655909695488michaelb52502020-07-14T15:25:35.9670000-05:00Oh man I've had enough, I gotta get back to work. Peace
564300084800373391361slinkygn2020-07-14T15:26:06.4830000-05:00That would be part of my serious non-joking discussion that I asked in that text you may have read.
565300084800373391361slinkygn2020-07-14T15:27:33.3390000-05:00The actual reflow oven I discussed seriously, because I'd actually use it. (You can tell because, y'know, no laughing emoji or memes of 90s movies.)
566316809616828923904hon1nbo2020-07-14T15:27:52.8100000-05:00we have an oven; @michaelb and I both agree it is the right size for what we need and it doesn't make sense to get a bigger one. Then someone comes along and says we should get it because it's way nicer. Argues that it would get more users than the haas, justifies it like comparing the haas to x-carve, pretends they know how many people actually use the haas, when we keep saying it doesn't make sense to use a commercial sized oven for one board / hobby scales goes into arguments about how the hot air tools get used etc and that's justification, then claims it was all a joke despite not just backing out of the discussion earlier I think that's enough of a tl;dr. thanks for the reminder @michaelb I'm technically still on the clock
567316809616828923904hon1nbo2020-07-14T15:29:03.1930000-05:00start of the seriousness and not a joke was clearly here: > Comparing an ETS conveyor machine to a T962A is comparing a Haas to (edit) an X-carve @slinkygn (George)
568300084800373391361slinkygn2020-07-14T15:29:25.8970000-05:00I can show you the AD search I performed. Not that I think it's relevant. I appreciate your outlining your perception of what happened. Clarifies right up for me when and how much of what was clearly jest you guys took knee-jeel seriously despite big obvious Australian cues otherwise.
569300084800373391361slinkygn2020-07-14T15:29:39.1510000-05:00That was LITERALLY POSTED WITH THE MEME
570316809616828923904hon1nbo2020-07-14T15:29:49.9750000-05:00dude, you kept digging your heels in
571316809616828923904hon1nbo2020-07-14T15:30:04.3240000-05:00random throwing ins of memes in you defending why we need a machine like that doesn't somehow make it a joke
572316809616828923904hon1nbo2020-07-14T15:30:06.5320000-05:00or sarcasm
573300084800373391361slinkygn2020-07-14T15:30:15.2190000-05:00I posted that statement with the meme. That was a JOKE.
574316809616828923904hon1nbo2020-07-14T15:30:17.1430000-05:00if you left it at the original lines that would have been one thing, but then you posted that
575316809616828923904hon1nbo2020-07-14T15:30:19.3360000-05:00and it kept going
576300084800373391361slinkygn2020-07-14T15:30:39.9010000-05:00You called that the "start of the seriousness"
577316809616828923904hon1nbo2020-07-14T15:30:52.0510000-05:00"slinkygn: Comparing an ETS conveyor machine to a T962A is comparing a Haas to (edit) an X-carve(edited) [12:30 PM] michaelb: I mean those are indeed two CNCs [12:31 PM] michaelb: Purchasing a Haas when you don't even use your X-carve is a pretty big waste of money. [12:33 PM] slinkygn: If you have stuff you can do with the X-carve, sure -- but that's not usually how people buy stuff. [12:34 PM] slinkygn: You have a need, so you buy the thing that fits it -- not you buy a thing and hope your need fits it. [12:34 PM] slinkygn: Purchasing an X-carve because you want to mill billet aluminum but can't afford a Haas is a pretty big waste of money."
578300084800373391361slinkygn2020-07-14T15:30:52.8530000-05:00Acknowledging that everything before that was clearly not serious
579300084800373391361slinkygn2020-07-14T15:31:27.8130000-05:00So, basically, for you the transition from non-serious to serious, again, included a movie meme and little else.
580316809616828923904hon1nbo2020-07-14T15:31:32.4440000-05:00whatever; I'm muting the channel now
581316809616828923904hon1nbo2020-07-14T15:31:36.4560000-05:00it's too distracting
582300084800373391361slinkygn2020-07-14T15:31:38.5150000-05:00That is the flying off the cuff I'm referring to.
583300084800373391361slinkygn2020-07-14T15:31:54.8360000-05:00That's fine. You've clarified what you perceived. I appreciate it.
584300084800373391361slinkygn2020-07-14T15:34:55.5560000-05:00And that your thought it started with my line about the HAAS and X-carve vs big and little oven. Instead of the following line - "Purchasing a HAAS when you don't even use your x-carve..." Remember 5m ago when you said nobody had said a reflow oven wouldn't be used, even the small one? As a response to my saying that is what I disagreed with and put forth an argument for?
585300084800373391361slinkygn2020-07-14T15:35:07.6770000-05:00Like I said. Thanks for clarifying.
586300084800373391361slinkygn2020-07-14T15:35:39.8460000-05:00Next time I'll make sure to not discuss anything while on the phone Discord app. 🙄
587388213344236077056doug.emes2020-07-14T16:51:18.1580000-05:00@slinkygn (George) would you mind editing your profile in this discord to use your given name? Maybe like jim?👍 (1)
588194641296529424386canibalcrab2020-07-14T16:52:19.6040000-05:00You can do that per discord server
589300084800373391361slinkygn2020-07-14T16:52:41.0540000-05:00I certainly can.❤️ (1)
590194641296529424386canibalcrab2020-07-14T16:52:41.4050000-05:00Just right click it in the server and hit 'change nickname'
591194641296529424386canibalcrab2020-07-14T16:53:13.5140000-05:00-for the readers wondering
592300084800373391361slinkygn2020-07-14T16:55:42.9530000-05:00Apologies. Took me a sec. Still on mobile currently.
593300084800373391361slinkygn2020-07-14T16:57:55.1490000-05:00Also - just stopped for gas, so fortuitous timing, but I've been out of pocket for a bit before now and will be for a while more once I get in the car. Got another 30min or so to my drive, a stop and another 45min to finish.
594388213344236077056doug.emes2020-07-14T17:03:26.2940000-05:00Thanks!
595268944958772215808chocolatelasagna2020-07-15T11:07:26.5980000-05:00This is the toroid transformer I Wana use in a project. Was gonna do a linear bench supply but idk if I really need a linear one for what I will be doing in immediate future. If anyone has a use for it let me know I can let go of it for relatively cheaphttps://cdn.discordapp.com/attachments/300062878676025344/732991727136276650/JPEG_20200715_110550.jpg?ex=67b94d7e&is=67b7fbfe&hm=d31fb0f3818953af1d8245d3b1d55ca3d51ca0c5368bcb2de37034ad8b7680ad&
596268944958772215808chocolatelasagna2020-07-15T11:08:10.1080000-05:00https://cdn.discordapp.com/attachments/300062878676025344/732991909316001800/JPEG_20200715_110809.jpg?ex=67b94da9&is=67b7fc29&hm=5328071f37896d11dc2839a6b414163c9b37890a534d405fbb18dccb45510623&
597300084800373391361slinkygn2020-07-23T08:16:09.2480000-05:00Does anyone here, by chance, own a Wooting keyboard?
598300084800373391361slinkygn2020-07-23T08:16:44.2550000-05:00Got an experiment one may want to try if they do; I've just been talking to the keyboard developers and found an oddity with their build they're going to be asking the factory about
599300080747673288704kenpurcell2020-07-30T23:33:55.3440000-05:00For my battery obsessed friends, you are welcome https://bigbattery.com/❤️ (1)
600547106163842613259nullinterface2020-07-31T09:08:50.2400000-05:00complete 24kWH Leaf batteries for $1000 ... even at their nominal 60% capacity that's 14.4Kwh at <$70/Kwh
601547106163842613259nullinterface2020-07-31T09:39:55.0390000-05:00the idea of big powerbanks and powerwalls fascinate me, but I've never gotten so far as to try to build one
602188482200658903040skyspook2020-07-31T09:50:45.3230000-05:00I have yet to need such a solution, but they fascinate me as well. I keep wanting to do an electrical conversion on a car some day too.
603547106163842613259nullinterface2020-07-31T09:51:10.0390000-05:00wonder if *purple lightning* is still available
604540021655909695488michaelb52502020-07-31T09:52:03.0480000-05:00Electric Lemons car
605547106163842613259nullinterface2020-07-31T09:52:20.9870000-05:00the conversion has already been done ... using early-90s EV kit tech ... so mainly you have don't have to remove the ICE stuff and have a ready-made battery tray to work with
606540021655909695488michaelb52502020-07-31T09:53:07.9290000-05:00Not sure what voltages that truck ran but I think it'd take a little bit of luck to just plug a leaf battery into it.
607300083517877125121andrew51522020-07-31T09:53:26.6710000-05:00OOOOOH. THAT 'purple lightning'
608540021655909695488michaelb52502020-07-31T09:53:39.5530000-05:00I bet you could buy that cheap enough to make a lemons car...
609540021655909695488michaelb52502020-07-31T09:53:50.0220000-05:00Someone ran an S10 at MSR last year
610300083517877125121andrew51522020-07-31T09:53:53.8230000-05:00I read 'purple lighting' and was thinking "Erik wants to LED his undercarriage? Grill?"
611547106163842613259nullinterface2020-07-31T09:53:54.8790000-05:00you would want to redo it - it was a DC conversion without regenerative braking using lead-acid batteries
612547106163842613259nullinterface2020-07-31T09:54:41.1180000-05:00could drop in LiFeP04 batteries - at terrific cost - and realize more useful capacity
613547106163842613259nullinterface2020-07-31T09:55:10.1110000-05:00but better off to re-engineer it around normal li-ion chemistry and modern motors/controllers
614300083517877125121andrew51522020-07-31T09:57:54.5940000-05:00> but better off to **back away slowly, so as to not garner attention**
615188482200658903040skyspook2020-07-31T09:57:54.8980000-05:00Saw some guys in lemons race an old electrica 007 with lead acid running it.... the amount of money they spent on batteries and chargers and generators must have been crazy.
616188482200658903040skyspook2020-07-31T09:58:15.2290000-05:00Yes, let's LED Erik's ride. Sounds like fun 🙂
617547106163842613259nullinterface2020-07-31T09:58:42.9050000-05:00but all I want are some lightbars - conspicuous for the Ranger and subtle for the WRX
618540021655909695488michaelb52502020-07-31T09:59:46.7990000-05:00Yeah, I kind of laughed when I figured out if you really wanted to run a lemons EV you'd almost certainly need to bring your own generator on a trailer to charge the batteries...
619547106163842613259nullinterface2020-07-31T10:00:17.6510000-05:00racetracks not known for their electrical infrastructure, eh?
620188482200658903040skyspook2020-07-31T10:00:47.8950000-05:00Not so much
621188482200658903040skyspook2020-07-31T10:01:07.2110000-05:00But they really want you to race one: https://24hoursoflemons.com/blog/electric-race-car/
622547106163842613259nullinterface2020-07-31T10:01:32.3140000-05:00the one time I was dragged out to Eagles' Canyon it seemed like the 'pits' were primarily easy-ups in the parking lot
623547106163842613259nullinterface2020-07-31T10:02:07.8560000-05:00a bit harder to procure ***unreasonable*** quantities of nickels these days 😂
624547106163842613259nullinterface2020-07-31T10:06:11.8680000-05:00if I had unreasonable amounts of time and didn't mind potentially throwing away >$2000 I'd grab one of those early retail BEVs (i.e. Spark) and rehab it as a grocery-getter
625547106163842613259nullinterface2020-07-31T11:53:28.7940000-05:00could be an interesting group project, but equitable administration/distribution cost and effort would be challenging
626188482200658903040skyspook2020-07-31T12:08:16.5220000-05:00That's the definition of a race team
627189645236908064768themitch222020-07-31T12:09:26.3170000-05:00Could you do a battery swap in the pits and keep going?
628547106163842613259nullinterface2020-07-31T12:09:29.6640000-05:00I was thinking conversion project for something practical as a daily
629547106163842613259nullinterface2020-07-31T12:10:12.3690000-05:00@themitch22 likely the only practical way to do endurance racing in an EV
630189645236908064768themitch222020-07-31T12:11:33.4140000-05:00Or a solar "car" and win the least number of laps
631189645236908064768themitch222020-07-31T12:11:45.3130000-05:00And probably be a danger to everyone on the track
632547106163842613259nullinterface2020-07-31T12:21:21.0960000-05:00in a Lemons-style multi-class race? Likely.
633188482200658903040skyspook2020-07-31T12:27:25.3310000-05:00Yes, that's how they did it. Pretty cool system they had
634188482200658903040skyspook2020-07-31T12:27:33.4350000-05:00Though there were doing it a lot
635188482200658903040skyspook2020-07-31T12:27:39.7480000-05:00Cause... Racing
636207721887067799562aesthetys2020-08-01T19:48:31.8010000-05:00Newbie here. If I try to build this, am I likely to die? https://mad-science.wonderhowto.com/how-to/turn-microwave-oven-transformer-into-high-amperage-metal-melter-0140772/
637207721887067799562aesthetys2020-08-01T19:48:50.9160000-05:00I'm good at following instructions though
638207721887067799562aesthetys2020-08-01T19:49:21.8470000-05:00I need a forge to do blacksmithing and this looks like a cheap way to get something that works...assuming I don't kill myself with it.
639207721887067799562aesthetys2020-08-01T19:50:55.3320000-05:00If it's okay to build, I have a follow-up question: can that eye hole there be made bigger so I can insert a bigger metal stock?
640194641296529424386canibalcrab2020-08-01T19:58:13.8750000-05:00Honestly you can get a hellfire forge that uses propane for 150-200
641194641296529424386canibalcrab2020-08-01T19:58:36.1160000-05:00Using a microwave just seems like a bad idea
642456226577798135808Deleted User2020-08-01T19:58:53.8730000-05:00That's a lot safer than using it for fractal burning at least
643456226577798135808Deleted User2020-08-01T19:59:30.7910000-05:00But an induction heater would be a lot easier to control
644194641296529424386canibalcrab2020-08-01T20:01:11.4400000-05:00Induction is awesome. But can get expensive
645207721887067799562aesthetys2020-08-01T20:02:40.0500000-05:00@pearce Can I just use a plain old campfire if my wood fire skills are good enough?
646207721887067799562aesthetys2020-08-01T20:02:56.5250000-05:00I looked it up and those can get pretty hot
647547106163842613259nullinterface2020-08-13T11:39:01.0020000-05:00a ***thorough*** post-mortem analysis on the exothermic failure of a utility-scale battery storage system : https://www.aps.com/-/media/APS/APSCOM-PDFs/About/Our-Company/Newsroom/McMickenFinalTechnicalReport.ashx?la=en&hash=50335FB5098D9858BFD276C40FA54FCE
648547106163842613259nullinterface2020-08-13T11:44:35.6110000-05:00of interest since I've had a hankering to do large powerbanks and DIY powerwalls but pretty much none of the builds I've seen do much to account for the possibility of overheating, thermal runaway, or fire suppression
649547106163842613259nullinterface2020-08-13T11:46:01.9160000-05:00cheapest way I can think of to handle such possibilities for the homeowner on a small scale is to simply *bury* their DIY powerwall and make some arrangements for any overpressure from outgassing or fire to vent to atmosphere
650540021655909695488michaelb52502020-08-14T19:28:18.0110000-05:00Anyone here been going through the Tanner's donation pile?
651540021655909695488michaelb52502020-08-14T19:29:04.7260000-05:00I'm hoping to find some very basic 7-segment mV meters, like 0-50 or 0-100mV, panel mount. They're everywhere on Amazon just figured he mightve had some.
652540021655909695488michaelb52502020-08-14T19:29:20.1620000-05:00New laser project (safe ammeters on the front panel).
653547106163842613259nullinterface2020-08-18T08:58:32.0790000-05:00Tanner's wasn't known for ... contemporaneous ... inventory
654540021655909695488michaelb52502020-08-18T11:24:02.1650000-05:00It feels like exactly the type of thing that Tanner's would've had a styrofoam tray of sitting around, but is also likely to have been bought up by someone when closing. Either way, Art picked some up for me at Newark for not too much money.
655189645236908064768themitch222020-08-18T12:15:48.8710000-05:00they also didn't have cool stuff like nixie tubes. I would love to see if any adafruit stuff made it to those bins
656188482200658903040skyspook2020-08-18T12:16:35.1220000-05:00Sounds like some inventory needs to be done
657194641296529424386canibalcrab2020-08-18T12:17:39.0720000-05:00Sounds like electronics needs to not sit on piles of parts for years
658194641296529424386canibalcrab2020-08-18T12:17:45.6230000-05:00Again
659540021655909695488michaelb52502020-08-18T12:19:57.2570000-05:00There's a rumor that some people are going through it, but I guess they're not on discord. Malcolm would know more.
660540021655909695488michaelb52502020-08-18T12:20:21.5310000-05:00That being said, electronics does love to sit on piles and piles and loosely sorted junk 🤣😂 (1)
661188482200658903040skyspook2020-08-18T13:00:30.9510000-05:00I don't mind having useful components around. But you have to actually be able to find them in order for it to be useful...
662263153628141977603kentamanos2020-08-18T13:00:34.8480000-05:00once upon a time I sorted the 74xx series of DIPs they had, many with legs that still had some solder on them 🙂
663194641296529424386canibalcrab2020-08-18T13:10:43.5450000-05:00It's something like 3100 gallons of surplus electronics
664540021655909695488michaelb52502020-08-18T13:22:49.9980000-05:00That's 1.44 cubic centifurlongs.
665488485682184978442yashsedai2020-08-18T13:28:20.3040000-05:00Sounds like a job for the ROLLAWAY DUMPSTER SERVICE
666316809616828923904hon1nbo2020-08-18T14:19:33.6590000-05:00^^ this I liked the idea of taking donations from them, but they needed to be more discriminatory about what they take in
667188482200658903040skyspook2020-08-18T14:21:53.4910000-05:00I can volunteer to go through it. I'm pretty brutal about tossing stuff -- though if it's just me it'll take a while.
668488485682184978442yashsedai2020-08-18T14:22:23.6990000-05:00I propose that we order a dumpster, take all the bins, throw contents in said dumpster, tell everyone the dumpster will be gone in one week, let the chips fall as they may, one condition, nothing comes back in the building
669300080747673288704kenpurcell2020-08-18T14:22:46.1620000-05:00Or at least follow up when you say you are going to go through them. I have already thrown away several million parts (SMD/SMT) though. I can come back up there with a crew and wreak havoc!
670488485682184978442yashsedai2020-08-18T14:23:24.9640000-05:00While we are at it, go over into electronics dept and do the same with all the bs sitting around
671540021655909695488michaelb52502020-08-18T14:29:51.9230000-05:00@Skyspook I'll help go through it as well. Though I thought Malcolm and Art had a group already doing that.
672188482200658903040skyspook2020-08-18T14:30:23.3130000-05:00No clue. I can check in with Art at some point 🙂
673316809616828923904hon1nbo2020-08-18T14:37:29.8530000-05:00@malcolmputer care to chime in?
674178754956168265740malcolmputer2020-08-18T14:40:46.3870000-05:00I set up a google doc with the inventory in sheets, set up some basic categories, and Art and I went through about 10% of the inventory as a test to see how the sheet works.
675178754956168265740malcolmputer2020-08-18T14:42:12.3400000-05:00We took down info such as the following:
676178754956168265740malcolmputer2020-08-18T14:42:17.0090000-05:001 Relay 2 NO Relay 30A 208 coil 9 1 Hardware Metric M2, M3, M4 bolts, nuts, washers 15 1 Solenoid Robot Grabber Arm 1 1 Breakers 40A 240V AC/DC 22 1 Tools Magnifying Glass 24 1 Eval Board Video Converter + Cables, VGA S Video Composite 1
677178754956168265740malcolmputer2020-08-18T14:42:26.2100000-05:00and of course it's sortable etc.
678178754956168265740malcolmputer2020-08-18T14:43:18.2550000-05:00The plan was once we had inventoried everything we would start deciding how to bundle for sale/giveaway/whatever is legal with DMS and what to keep as a honor system donation style things for DMS elab.👍 (3)
679540021655909695488michaelb52502020-08-18T14:43:48.1900000-05:00dumb question: was there a mechanism for locating items in the room?
680178754956168265740malcolmputer2020-08-18T14:44:01.8970000-05:00Bin number, that's the first row in the above paste.
681178754956168265740malcolmputer2020-08-18T14:44:25.0580000-05:00We got through bins 1-12 out of ~120.
682178754956168265740malcolmputer2020-08-18T14:45:58.4910000-05:00All of the bins have a small sharpie marked number on the bin and the bin lid to make sure we don't confuse them by moving them around.
683188482200658903040skyspook2020-08-18T14:49:08.1920000-05:00Rock on 🙂
684178754956168265740malcolmputer2020-08-18T14:49:52.3540000-05:00@Skyspook I'm sure Art would be happy to have another volunteer to help him with the bins. I set up the sheet, the categories, but let him know that it was back in his court as my work stuff picked back up.
685300080747673288704kenpurcell2020-08-18T16:13:39.3150000-05:00A searchable spreadsheet is ideal.
686178754956168265740malcolmputer2020-08-18T17:26:19.4090000-05:00It is searchable, and more importantly filterable. You could for instance, filter to relays, and then sort high to low by quantity, and if you wanted to filter by AC or DC and then search by max V or A you could.
687300084800373391361slinkygn2020-08-19T00:56:33.2100000-05:00@malcolmputer link to the Google doc, by chance?
688189645236908064768themitch222020-08-19T01:47:01.7770000-05:00Are the parts from tanners free for all or someone gets first dibs?
689300080747673288704kenpurcell2020-08-19T08:30:50.3610000-05:00Traditionally they have been free to use in projects, not just free to take for your home stock pile. I guess determine DMS's use first, then members use and then enough for free to take.
690300080747673288704kenpurcell2020-08-19T08:31:18.9120000-05:00That may change depending on how long the take up orange
691194641296529424386canibalcrab2020-08-19T09:17:18.7490000-05:00But electronics has to sort the donation before anyone can go taking stuff
692178754956168265740malcolmputer2020-08-19T09:32:43.8960000-05:00@slinkygn (George) @artg_dms is the owner of the sheet, I think he's only giving it to people who volunteer to sort in the short term at least.
693178754956168265740malcolmputer2020-08-19T09:33:48.5810000-05:00The electronics are not free, keep your mitts to yourself until @artg_dms says otherwise.
694540021655909695488michaelb52502020-08-19T09:37:41.5990000-05:00Is there an active effort to sort it? Like days set up or people being recruited? Art didn't say anything at the last committee meeting, he mentioned other stuff like amateur radio and mouser donations
695540021655909695488michaelb52502020-08-19T09:39:49.4920000-05:00I guess where I'm concerned is that electronics has a history of hoarding things, and now an entire classroom is tied up with crates of stuff, people are told not to touch, and it seems like the committee is fine just letting it sit there.
696403764287975325697brsims24062020-08-19T09:41:02.8500000-05:00You aren't the only one with those concerns. I pinged Art about it this morning.
697300084800373391361slinkygn2020-08-19T09:51:41.7850000-05:00> @slinkygn (George) @artg_dms is the owner of the sheet, I think he's only giving it to people who volunteer to sort in the short term at least. @malcolmputer I'd volunteer to sort. It'd be more productive than the time I spent sorting the old piles and piles of components. :)
698540021655909695488michaelb52502020-08-19T14:23:34.6140000-05:00Coworker found a pack of these when cleaning out his desk, I think they would go real well with the rest of the stuff in electronics 😝https://cdn.discordapp.com/attachments/300062878676025344/745724658778636318/20200819_142227.jpg?ex=67b97b75&is=67b829f5&hm=080a1acec6031b0cd2201acea960850d2f418c0f30c2d55a6081daeda9d691c3&👍 (1)
699188482200658903040skyspook2020-08-19T14:29:58.9300000-05:00lol, I used those! Good times
700189645236908064768themitch222020-08-20T00:12:13.6540000-05:00Etch resist stickers for acid etching boards?
701189645236908064768themitch222020-08-20T00:12:44.8410000-05:00Why not use a marker and hand draw the traces like the good old days.
702540021655909695488michaelb52502020-08-20T00:36:16.5500000-05:00Lol no, you can put these directly on a PCB but the intention is to lay them down on mylar sheets, which are used as masks to make boards.
703189645236908064768themitch222020-08-20T00:54:08.1250000-05:00More steps. Now we have cad and laser printer transfers
704188482200658903040skyspook2020-08-20T08:40:26.0330000-05:00But then it doesn't look like a 3-year-old cut and pasted your circuit together
705189645236908064768themitch222020-08-20T09:44:12.2720000-05:00Have to admit that is pretty cool thoughhttps://cdn.discordapp.com/attachments/300062878676025344/746016744358805604/3trins-front-angle.jpeg?ex=67b939fc&is=67b7e87c&hm=5b0f04db1eba982382f82582b03130c6207ce8ad249479bc85ec80fcd9a10927&
706188482200658903040skyspook2020-08-20T09:46:26.1640000-05:00They're like functional modern art 🙂
707189645236908064768themitch222020-08-20T09:55:31.2840000-05:00Ooo what happened to that free-form digital clock built with discrete components at Tanners? That was my favorite thing
708194641296529424386canibalcrab2020-08-20T10:01:14.0450000-05:00It was a gift to jimmy
709194641296529424386canibalcrab2020-08-20T10:01:39.2690000-05:00He and a friend would make wild shit like that and give it to each other
710189645236908064768themitch222020-08-20T10:04:52.2370000-05:00I'd love to do that but with nixie tubes
711194641296529424386canibalcrab2020-08-20T11:08:13.6000000-05:00I have a laptop that has a broken power port, I need to get a final charge into the battery before retirement for it
712194641296529424386canibalcrab2020-08-20T11:08:20.6060000-05:00https://cdn.discordapp.com/attachments/300062878676025344/746037918497505360/IMG_20200820_110727.jpg?ex=67b94db4&is=67b7fc34&hm=9299f4b0f7e4d9a1e98ffb736ec3ed4441b0d8b3e0c5b3bd0517d725c5fb3208&
713194641296529424386canibalcrab2020-08-20T11:08:24.2050000-05:00This is the battery connection
714194641296529424386canibalcrab2020-08-20T11:08:56.3240000-05:00Thoughts on charging? The power connection is a type c that doesn't seem to be responding
715488485682184978442yashsedai2020-08-20T11:19:19.1750000-05:00pardon my ignorance, why does it need a final charge?
716488485682184978442yashsedai2020-08-20T11:19:29.9240000-05:00@pearce
717194641296529424386canibalcrab2020-08-20T11:19:51.2880000-05:00*files*
718194641296529424386canibalcrab2020-08-20T11:20:11.3970000-05:00But it's also got a busted screen so I wasn't going to invest a bunch more into it
719488485682184978442yashsedai2020-08-20T11:20:18.3460000-05:00eh
720488485682184978442yashsedai2020-08-20T11:20:25.1020000-05:00why not just pull the drive
721488485682184978442yashsedai2020-08-20T11:20:29.7100000-05:00and copy the files
722488485682184978442yashsedai2020-08-20T11:20:35.5200000-05:00no need for charging
723194641296529424386canibalcrab2020-08-20T11:20:47.7970000-05:00Super thin client
724194641296529424386canibalcrab2020-08-20T11:21:00.0760000-05:00All surface mount bits
725488485682184978442yashsedai2020-08-20T11:21:07.2130000-05:00on the hard drive?
726488485682184978442yashsedai2020-08-20T11:21:13.7490000-05:00what is the make/model
727194641296529424386canibalcrab2020-08-20T11:21:46.3810000-05:00Razer blade stealth 2016
728194641296529424386canibalcrab2020-08-20T11:23:05.8220000-05:00But putting a charge into it will let me use it a few more times while I get a new one
729488485682184978442yashsedai2020-08-20T11:24:05.2010000-05:00aye
730488485682184978442yashsedai2020-08-20T11:24:10.5000000-05:00if that doesn't work
731488485682184978442yashsedai2020-08-20T11:24:11.7000000-05:00https://www.amazon.com/M-2-External-Converter-Adapter-Enclosure/dp/B076DCNZM3
732488485682184978442yashsedai2020-08-20T11:24:15.5520000-05:00https://www.ifixit.com/Guide/Razer+Blade+Stealth+2016+Hard+Drive+Replacement/128080
733488485682184978442yashsedai2020-08-20T11:24:21.5110000-05:00looks pretty easy to get out
734194641296529424386canibalcrab2020-08-20T11:26:35.8570000-05:00So it does have an m.2
735194641296529424386canibalcrab2020-08-20T11:26:45.9140000-05:00Hadn't taken it apart that far
736488485682184978442yashsedai2020-08-20T11:30:58.5720000-05:00yup
737300083517877125121andrew51522020-08-20T11:40:50.1690000-05:00(based on that tutorial) It looks like the hard part will be painting your nails a funky blue and decorating them plus, I wonder of that Gold ring is absolutely necessary? Maybe it's a degaussing device for preventing the super-zap from static discharge? And lord! I'd have to upgrade my wristwatch from nothing to an iWatch... Screw that.
738189645236908064768themitch222020-08-20T12:04:35.8620000-05:00Is your razer blade dead or are you going to replace the battery?
739194641296529424386canibalcrab2020-08-20T12:05:58.0780000-05:00It's not seeing the power connection
740194641296529424386canibalcrab2020-08-20T12:06:05.8190000-05:00So it can't charge
741194641296529424386canibalcrab2020-08-20T12:06:25.0540000-05:00Although the battery doesn't register at all on a meter
742189645236908064768themitch222020-08-20T12:18:15.4180000-05:00Is the charger on the main board? Probably not worth replacing.
743189645236908064768themitch222020-08-20T12:18:53.1740000-05:00The razer blade stealth is a nice laptop though but glad i bought an Alienware, it has been much more user serviceable than I thought.
744194641296529424386canibalcrab2020-08-20T12:27:12.3060000-05:00Power is connected to mobo
745547106163842613259nullinterface2020-08-20T15:10:17.1510000-05:00I've had good luck with my cheap ASUS
746547106163842613259nullinterface2020-08-20T15:11:49.5870000-05:00although I suspect that the power connector will eventually be the lethal flaw
747194641296529424386canibalcrab2020-08-20T15:31:24.4190000-05:00I was eyeballing a small Lenovo
748194641296529424386canibalcrab2020-08-20T15:31:42.2080000-05:00Needs to fit on my toolbox so I can lug it to repairs
749540021655909695488michaelb52502020-08-20T15:33:12.2530000-05:00XPS 13?
750388213344236077056doug.emes2020-08-20T17:38:48.6550000-05:00@pearce, gpd.hk get a micropc
751388213344236077056doug.emes2020-08-20T17:39:04.0400000-05:00Its that baby laptop you have seen me record meetings with etc
752388213344236077056doug.emes2020-08-20T17:39:13.9970000-05:00It fits in your pocket
753570472690541002764hardsuit2020-08-27T00:48:54.0070000-05:00I'm planning on a 15" HP Envy x360 for Black Friday, already have the 32GB ram kit to upgrade it
754267522323664470016jackb9232020-09-08T14:24:12.7720000-05:00Anyone know if the Tektronix2465 analog scope is working? been trying to use xy mode, and can't seem to get anything
755316809616828923904hon1nbo2020-09-09T19:30:46.0700000-05:00what does the space currently have logic-analyzer wise?
756188482200658903040skyspook2020-09-09T20:01:26.6210000-05:00Didn't Raymond just do a class on some we had?
757189645236908064768themitch222020-09-10T01:19:33.0220000-05:00the national instruments fancy thing that connects to the computer
758388213344236077056doug.emes2020-09-25T14:06:27.8180000-05:00any thoughts on this system: https://simplisafe.com/ - not for DMS< but for a residence
759188482200658903040skyspook2020-09-25T14:12:01.5040000-05:00https://www.youtube.com/watch?v=UlNkQJzw4oA👍 (1)
760188482200658903040skyspook2020-09-25T14:12:31.4330000-05:00If you overwhelm the wireless signal, it won't alarm.
761388213344236077056doug.emes2020-09-25T14:15:08.6710000-05:00technically cutting the fiber at the end of the street is a great burglar idea
762188482200658903040skyspook2020-09-25T14:15:19.6450000-05:00lol, true
763388213344236077056doug.emes2020-09-25T14:17:03.5930000-05:00my house has an old zigbee based system, hasnt been monitored in a decade the batteries have finally died i think
764547106163842613259nullinterface2020-09-26T17:27:01.3260000-05:00> technically cutting the fiber at the end of the street is a great burglar idea @doug.emes shocked this doesn't happen more often with fiber hubs being easy to find and ... passivee
765188482200658903040skyspook2020-09-26T17:49:08.9280000-05:00We just had a big fiber cut in Addison that took down one of my company's mpls circuits. Course, that was just a gorilla with an auger.
766547106163842613259nullinterface2020-09-26T22:15:58.6060000-05:00digger fade: decidedly more pronounced than rain fade
767547106163842613259nullinterface2020-10-23T18:35:56.1220000-05:00https://cdn.discordapp.com/attachments/300062878676025344/769343379926286357/Screenshot_20201023-183439.png?ex=67b9b69b&is=67b8651b&hm=7feb321722c1162a31d733a3d74f608dd148e8929d2284fe92d227daa770f055&
768547106163842613259nullinterface2020-11-06T12:34:30.5660000-06:00anyone know of some hardware on the market that would allow for *connectors* to be spliced *inline* on already-run wires?
769547106163842613259nullinterface2020-11-06T12:38:31.8240000-06:00I could tolerate taps so long as they trim out neatly, but products like these aren't big enough: https://www.amazon.com/Wire-Connectors-Solderless-Stripping-Connection/dp/B07114RK67
770488485682184978442yashsedai2020-11-06T14:17:35.0250000-06:00plain old 110v?
771488485682184978442yashsedai2020-11-06T14:17:43.0690000-06:00low voltage?
772547106163842613259nullinterface2020-11-06T17:28:09.6800000-06:00Low voltage DC, couple of amps
773547106163842613259nullinterface2020-11-21T17:50:51.8280000-06:00https://cdn.discordapp.com/attachments/300062878676025344/779856382903058452/unknown-4.png?ex=67b9ba1a&is=67b8689a&hm=5824074c564957d852ebf94e7fd57b257931661580ff0ca40a9225cd27792b68&
774547106163842613259nullinterface2020-11-21T17:51:36.2590000-06:00Because I'm nerding out / theory crafting the possibilities of Tesla's 46800 cells
775547106163842613259nullinterface2020-11-21T17:59:58.2560000-06:00Chart isn't the most self-explanatory, but the peak values for 18650/21700/26650 are distinct high-density/high-current cells, thus the "synthetic C" value is a fiction for the sake of metrics to work against possible 46800 values
776547106163842613259nullinterface2020-11-21T18:01:39.1370000-06:00I seriously doubt that a potential high-current version of the form factor is A. Likely B. Going to manage 8.5C discharge, thus I've corrected it to account for the Surface Area : Volume ratio it has relative to 18650
777207721887067799562aesthetys2020-12-19T11:43:04.2640000-06:00What’s the best one of these “learn electronics” kits? Are they pretty good?
778207721887067799562aesthetys2020-12-19T11:43:07.1410000-06:00https://www.amazon.com/Elenco-300-in-One-Electronic-Project-Lab/dp/B00005K86O
779565035585710850049mariooo85242021-01-13T20:09:29.5320000-06:00I found a book in the electronics section called “Learn by Discovery”. It gave me a shopping list of components to purchase (all tools can already be found at the Space). It’s filled with little projects to do. You may join me in learning electronics if you’d like.
780547106163842613259nullinterface2021-01-17T12:46:30.3620000-06:009V alakline batteries are terrible and have no place in modern electronics
781547106163842613259nullinterface2021-01-17T12:46:54.8280000-06:00and by *modern* I mean *made within the last 20 years*
782188482200658903040skyspook2021-01-17T13:09:09.2120000-06:00But they taste good
783540021655909695488michaelb52502021-01-17T13:13:30.1170000-06:00Shockingly delicious
784547106163842613259nullinterface2021-01-17T13:16:00.1300000-06:00tell me how a car battery tastes - only 33% more voltage
785188482200658903040skyspook2021-01-17T13:29:59.3170000-06:00They're juicy, but not as delicious.
786188482200658903040skyspook2021-01-17T13:30:04.9540000-06:00Too spicy
787547106163842613259nullinterface2021-01-17T13:48:50.9620000-06:00well played
788547106163842613259nullinterface2021-01-17T14:27:46.1280000-06:00Had to play a *fun* game of 'find a working 9V battery" today
789189645236908064768themitch222021-01-17T15:49:46.1060000-06:0018650's are the new 9v battery
790547106163842613259nullinterface2021-01-17T16:53:49.5560000-06:00no, the 9v battery is new the 9v battery - low capacity, high self-discharge, low current capability, expensive
791547106163842613259nullinterface2021-01-21T22:25:05.9130000-06:00did the bounty from Tanners include any chassis-mount wirewound resistors?
792565035585710850049mariooo85242021-01-23T12:42:03.7610000-06:00I saw a room with a sign that said “Hackerspace” that said they meet up every third Friday. Is that group active?
793403764287975325697brsims24062021-01-23T14:45:15.1670000-06:00Nope, never really were except in theory
794189645236908064768themitch222021-02-28T20:28:24.6390000-06:00not sure anyone is here but I need help with something with micropython and sbus/uart
795371416661040955403talkers2021-02-28T20:55:50.3800000-06:00Try Bill. You can pm him on talk
796189645236908064768themitch222021-02-28T21:04:00.6720000-06:00PM'd him
797189645236908064768themitch222021-02-28T21:04:07.3320000-06:00I think he has an email as well
798308357148750905345mrcity2021-03-03T21:59:07.3860000-06:00Someone made a gun that shoots ... capacitors https://www.youtube.com/watch?v=iIYlyMv7hRM🔥 (1)
799189645236908064768themitch222021-03-07T16:28:07.6600000-06:00https://talk.dallasmakerspace.org/t/raspberry-pi-pico-sbus-code-help/79375 I can't condense 20 years of computer science experience into a week, so I need help.
800115183069555589125aceat642021-03-07T16:57:14.7860000-06:00I've never even heard of SBUS before
801115183069555589125aceat642021-03-07T17:00:01.0390000-06:00hmm, doesn't look like it's as simple as UART, it's a parallel bus, not serial
802115183069555589125aceat642021-03-07T17:00:40.5480000-06:00or maybe not, still reading about it
803189645236908064768themitch222021-03-07T17:04:41.7510000-06:00The SBUS protocol uses an inverted serial logic with a baud rate of 100000, 8 data bits, even parity, and 2 stop bits. The SBUS packet is 25 bytes long consisting of: Byte[0]: SBUS header, 0x0F Byte[1 -22]: 16 servo channels, 11 bits each Byte[23] Bit 7: channel 17 (0x80) Bit 6: channel 18 (0x40) Bit 5: frame lost (0x20) Bit 4: failsafe activated (0x10) Byte[24]: SBUS footer
804189645236908064768themitch222021-03-07T17:05:36.1450000-06:00Most drone flight controllers use UART but inverts the signals, 0v is low 5v is high I think
805189645236908064768themitch222021-03-07T17:06:09.1480000-06:00https://youtu.be/IqLUHj7nJhI
806189645236908064768themitch222021-03-07T17:07:25.5040000-06:00The library as far as I understand, sets up UART with 100,000 baud, I don't know if it assumes the signal is inverted, that's easy enough to do with a transistor but I still don't know how this library works
807188482200658903040skyspook2021-03-07T17:46:39.4400000-06:00Given it's using the UART library, and I don't see any inverting of bits going on, I'd say that all of the voltages are going to be non-inverted. There is an invert parameter you can pass to the init function, I believe that should invert the logic for you
808188482200658903040skyspook2021-03-07T17:49:49.2550000-06:00I assume you'd be looking for invert = (UART.INV_RX | UART.INV_TX)
809189645236908064768themitch222021-03-07T17:50:17.2270000-06:00Is that for C or micropython?
810189645236908064768themitch222021-03-07T17:50:43.9310000-06:00the pico doesn't seem to match the micropython documentation
811189645236908064768themitch222021-03-07T21:50:04.2840000-06:00Sooo the micropython app works. And confirmed with my o-scope that it is a 0v low 3.3v high signal so it should read as UART
812188482200658903040skyspook2021-03-07T22:17:08.8070000-06:00Yea, sorry, I eas just reading the micropython docs. So the app works... But the controller isn't responding? Or is it celebration time?
813189645236908064768themitch222021-03-07T23:10:18.5040000-06:00The Pico is running the program correctly (print commands returning values) but the UART data isn't correct
814189645236908064768themitch222021-03-07T23:10:52.6540000-06:00I think its the pi pico UART implementation that's the issue
815189645236908064768themitch222021-03-07T23:11:00.6000000-06:00I can try it with an esp32 maybe
816189645236908064768themitch222021-03-08T01:21:55.9360000-06:00Well I had UART wrong. I do need to invert the signal after all.
817189645236908064768themitch222021-03-08T01:22:01.3000000-06:00https://cdn.discordapp.com/attachments/300062878676025344/818383035401502771/20210308_011027.jpg?ex=67b97b18&is=67b82998&hm=b2d8f2ab1b1d6f7120882ee8f334f7a88e8210b9e003d8612dcc2a99ff7f502e&
818189645236908064768themitch222021-03-08T01:22:11.0910000-06:00https://cdn.discordapp.com/attachments/300062878676025344/818383075796320276/20210308_012206.jpg?ex=67b97b22&is=67b829a2&hm=031ea04259ad5c41b86c6d2a39d918ac87ca6e8259bf9662d5293b82171c788d&
819189645236908064768themitch222021-03-08T01:22:28.9140000-06:00Yep that's the difference
820189645236908064768themitch222021-03-08T01:22:33.5930000-06:00Eureka
821189645236908064768themitch222021-03-08T01:22:54.2170000-06:00I'll just use the freaking 74S04 and get it over withdms (3)
822547106163842613259nullinterface2021-03-26T22:10:48.2540000-05:00https://cdn.discordapp.com/attachments/300062878676025344/825205183906578492/gh6uj6rhvfp61.png?ex=67b94037&is=67b7eeb7&hm=7128548823b6d08d3b3ccff9dc1214dcc40dd60964d1690bf20b0578d32ea0ce&
823332931227470397441gtometich2021-03-27T01:19:55.6890000-05:00I saw that post and was wondering if that was something outside an engineering university dorm or something similar. I could've sworn I've seen something like that posted before
824831042022487228448bupalup46652021-04-12T21:39:13.1640000-05:00Anyone have vacuum tubes?
825189645236908064768themitch222021-04-12T23:07:38.6800000-05:00I found a pack of tubes in e-lab somewhere on those wire shelves
826570472690541002764hardsuit2021-04-14T22:58:56.9370000-05:00There used to be a bunch, plus small selection of Nixies
827131586171573764096ravennvermore2021-06-03T00:15:12.1970000-05:00i'm not sure if i should post this here or in #computer-committee ... i thought this might be more appropriate as it's more soldering & figuring out what's going on with the hardware side of things ... Louis Rossmann makes a bunch of videos on youtube on how to fix various things & he's been putting a wiki together ... https://repair.wiki/w/Repair_Wiki
828371416661040955403talkers2021-06-03T01:17:35.4860000-05:00He's awesome. I didn't know about the wiki, so thank you
829371416661040955403talkers2021-06-03T01:18:04.1110000-05:00#rightToRepair
830300080747673288704kenpurcell2021-06-03T08:21:54.8880000-05:00Or his discord channel!
831194641296529424386canibalcrab2021-06-27T15:07:59.3490000-05:00https://hackaday.com/2021/06/25/a-custom-clock-with-led-filament-hands/
832194641296529424386canibalcrab2021-06-27T15:08:12.8080000-05:00I found the clock we need to make to the elab
833189645236908064768themitch222021-06-27T15:12:24.9280000-05:00It would be really cool if it actually used discrete component circuitry like the clock in Tanners.
834540021655909695488michaelb52502021-06-27T15:43:03.6900000-05:00https://www.transistorclock.com/
835547106163842613259nullinterface2021-07-02T09:22:48.7960000-05:00Utility installed new transformers in my neighborhood and I find the ratings on them confusing - 75KVA and 50KVA. In my mind that's basically 75kW and 50kW respectively, which seems awfully small when the 150A panel in my house can theoretically draw 36kW and each transformer serves something like 5-8 structures.
836547106163842613259nullinterface2021-07-02T09:24:06.5180000-05:00Also they're stamped 7200V, which - assuming KVA = kW - for a 50kVA unit would be <7A on the supply side
837188482200658903040skyspook2021-07-02T09:30:38.2470000-05:00Rating is in kVA cause of power factors and how the loading works. Could be less or more in wattage than that rating. But also, yes, if everyone were to go to max on everything, you may blow the transformer. Watched it happen once, pretty display...
838188482200658903040skyspook2021-07-02T09:31:18.3280000-05:00This explains it with the math a bit https://www.electricaltechnology.org/2012/02/why-transformer-rating-in-kva-not-in-kw.html/amp
839547106163842613259nullinterface2021-07-02T09:32:47.1190000-05:00I assumed it has something to do with the heat load it can handle and less the power delivery
840547106163842613259nullinterface2021-07-02T09:35:41.5460000-05:00because it's hard to imagine it being limited to 50kW net delivery
841547106163842613259nullinterface2021-07-02T09:42:22.4040000-05:00of course, reality is that big motors - like HVAC compressors - only pull peak startup loads for a second or so and generally don't all start at once after a blackout
842540021655909695488michaelb52502021-07-02T10:48:55.6620000-05:00Odds are those few houses really are limited to 50kVA continuous. They probably looked at what loads those houses had been using in the past, along with some knowledge of what an average house uses, and decided 50kVA was fine. There's likely some wiggle room for overloads like maybe 1 hour at 55 or 60kVA.
843547106163842613259nullinterface2021-07-02T10:49:29.5600000-05:00can probably handle brief loads well in excess of that?
844540021655909695488michaelb52502021-07-02T10:50:31.5370000-05:00Yeah, probably. It's mostly a heat thing, so the thermal mass of the all the steel in the transformer gives it some overload capability.
845547106163842613259nullinterface2021-07-02T10:50:40.0280000-05:00i.e. anyone on an analog thermostat probably had their HVAC units all restart within a second of power being restored after the replacement was re-energized
846540021655909695488michaelb52502021-07-02T10:53:10.3760000-05:00I'd be surprised if those types of surges we _not_ a factor in designing the transformer.
847547106163842613259nullinterface2021-07-02T10:53:14.4430000-05:00just weird that with EV's coming down the pipe they didn't plan ahead
848547106163842613259nullinterface2021-07-02T10:53:51.6030000-05:00and possibly in another decade or so heat pumps starting to displace gas furnaces
849540021655909695488michaelb52502021-07-02T10:54:59.7090000-05:00Hopefully by the time EVs are that prevalent, they can stagger their charge times or something equally clever to reduce peak loading.
850547106163842613259nullinterface2021-07-02T10:55:58.2610000-05:00Ford is throwing brute force at the problem with the F150 lighting - that's going to be an *immense* battery pack
851547106163842613259nullinterface2021-07-02T10:56:36.4450000-05:00I imagine much of the expense of the re-engineering in my 'hood was the installation of new conduits / conductors between transformers
852547106163842613259nullinterface2021-07-02T10:57:00.7160000-05:00if they need to upgrade transformers that's probably a one-day project
853300083517877125121andrew51522021-07-02T11:11:02.3820000-05:00"just weird that ... they didn't plan ahead" ROFL
854547106163842613259nullinterface2021-07-02T11:11:31.4850000-05:00distribution providers supposed to be playing the *long game*
855300083517877125121andrew51522021-07-02T11:12:03.7380000-05:00stop....my sides are splitting!
856547106163842613259nullinterface2021-07-02T11:12:40.8300000-05:00trains are supposed to run on time and children are supposed to respect their parents
857300083517877125121andrew51522021-07-02T11:13:14.0680000-05:00!Askhrew#$,,,sjd#!@
858547106163842613259nullinterface2021-07-02T11:13:42.4750000-05:00I dunno. whatever happened to actual *utilities* that made small consistent profits, engaged in actual long-term planning, while providing reliable service?
859547106163842613259nullinterface2021-07-02T11:14:55.5660000-05:00oh wait. *deregulation* since it was more important that someone's brother-in-law makes a fast buck "trading" a resource that's still produced/delivered/consumed the same way as always.
860300083517877125121andrew51522021-07-02T11:24:31.3380000-05:00I was going hereish https://www.scientificamerican.com/article/nitrogen-fertilizer-anniversary/https://cdn.discordapp.com/attachments/300062878676025344/860556556159549470/unknown.png?ex=67b9517f&is=67b7ffff&hm=b7c000720c9137832d8960ed75f0b0ce7d921cca41e6418b71c00ac5b8d79fd2&
861547106163842613259nullinterface2021-07-02T11:41:22.2710000-05:00corn ethanol has always had problems
862547106163842613259nullinterface2021-07-02T11:42:54.0950000-05:00its failure to produce an acceptable energy ROI was known long before GM made those dumb commercials touting their E85-compatible engines
863547106163842613259nullinterface2021-07-02T12:47:32.8520000-05:00but hey - E85 might be a rarity now but the corn lobby got their wish and it replaced MTBE as a gasoline additive
864207961619538378762denzuko2021-07-18T23:39:17.7710000-05:00is arduino programming remotely possible on CB4?
865207961619538378762denzuko2021-07-18T23:39:54.6280000-05:00I keep getting timeout errors trying to upload my sketch to an esp8266 thing board dev
866269697116648112129baitsyb8c2021-09-08T00:23:35.7900000-05:00I was using an AC/DC converter box for my macbook, and running the USB-C cable to my headphones. Cable frayed and died while my headphones were plugged in. Now the headphones won’t charge
867269697116648112129baitsyb8c2021-09-08T00:24:12.0750000-05:00Is this something that can be fixed by replacing 1-2 parts in the charging port / battery?
868269697116648112129baitsyb8c2021-09-08T00:24:35.3180000-05:00Or just the invest in new ones? They’re nice headphones btw
869274013487049474049samysuicide69182021-10-19T10:04:16.3370000-05:00Hello, i got parts for a mpcnc and i need some help putting them together on the controller and stepper motors i have. I just need help makinf sure it connects and functions and i could use any wisedom or advice yall have. Im willing to met up at makers space to test and run it if someone is free this Thursday and friday
870274013487049474049samysuicide69182021-10-19T10:05:04.4520000-05:00I figure 20$ and a meal to pay for your time would be worth it.
871639481621443248138.madcoder2021-10-22T19:17:33.0850000-05:00Hey all. Bought a little board intended to be used with a RPi but failed to realize it didn't come with a connector I need. based on Google I think it's a JST SH connector. 10-pin 1mm pitch. described here: https://wiki.geekworm.com/X630-Hardware
872639481621443248138.madcoder2021-10-22T19:17:55.9640000-05:00any suggestions on where to get such a connector? I'm finding some stuff but everything is overseas so far
873639481621443248138.madcoder2021-10-22T19:22:14.9310000-05:00oh, and I need female jumper wire on the other end for plugging into GPIO
874189645236908064768themitch222021-10-22T21:54:45.4450000-05:00What does this board do?
875639481621443248138.madcoder2021-10-23T01:54:15.0220000-05:00HDMI input -> CSI. Plugs directly into a Pi. Alternative would be a USB capture device.
876559886837150122025ealott2021-10-23T14:46:03.3550000-05:00Ooh, is that for a Pi KVM?
877639481621443248138.madcoder2021-10-23T15:24:00.7270000-05:00It could be used for one, I'm sure, but that's not my intent. Trying to use it for live stream setup.
878401783273803481088jdozer62021-11-05T11:40:12.0330000-05:00Hey all, I was wondering if anyone is familiar with a way to mass encode NFC tags? I saw a youtube video with a maker type device but didn't know if there was a commercial option available and if there is a software solution as well.
87997341415431892992jsnowfreedman2021-11-05T13:05:00.9190000-05:00How many are you looking at? There are some USB pads that can interact with some software that I've used in the past, but most of them aren't very good - especially if you want like an automatic way to increment IDs or pull from a DB or something.
88097341415431892992jsnowfreedman2021-11-05T13:05:39.1660000-05:00(there is one that I'm trying to find the name of again that had a piece of software that was just an API, so you could write your own 'programmer' in the language of choice and easily interact with the actual USB programmer
881401783273803481088jdozer62021-11-05T13:05:51.4100000-05:00a couple hundred thousand
88297341415431892992jsnowfreedman2021-11-05T13:06:04.9980000-05:00Ohboy
883401783273803481088jdozer62021-11-05T13:06:07.7000000-05:00lol yea
884189645236908064768themitch222021-11-05T13:08:15.0860000-05:00@Nodoze he's not active in this discord but he can probably give you insight into this.👏🏻 (1)
885401783273803481088jdozer62021-11-05T13:08:57.7110000-05:00thank you! yea, i'm working with a programmer now, i'm just trying to give him a head start but also i need to test my setup lol
88697341415431892992jsnowfreedman2021-11-05T13:09:55.6090000-05:00A few years ago I built a little device that would take a hundred of the little disk NFCs in a stack, and program them one by one, but even with that doing thousands will be painful👍🏻 (1)
887401783273803481088jdozer62021-11-05T13:10:22.3620000-05:00https://www.youtube.com/watch?v=DQeIvelsM94
888401783273803481088jdozer62021-11-05T13:10:46.3140000-05:00i'm basically completely replicating this, but they obviously have their own software
88997341415431892992jsnowfreedman2021-11-05T13:28:36.2090000-05:00-nodsnodsnods- well if you need a second programmer or anything feel free to ping me, sounds fun and it's been a while since I've worked on any of that stuff👍 (1)
890388213344236077056doug.emes2021-11-05T18:03:03.6910000-05:00assigned Art my proxy for this weekend
891388213344236077056doug.emes2021-11-08T16:42:10.4600000-06:00https://www.raspberrypi.com/software/operating-systems/
892388213344236077056doug.emes2021-11-08T16:42:18.3150000-06:00New OS available
893388213344236077056doug.emes2021-11-21T12:31:56.5520000-06:00While watching youtube today, I came across a competitor to the TS100 that utilizes a RISC-V instead of STM32 micro in their pen style soldering iron: https://pine64.com/product/pinecil-smart-mini-portable-soldering-iron/ Youtube video (highly favorable review, no comment about if it was for compensation or not) https://www.youtube.com/watch?v=k-wo_al9QJU
894559886837150122025ealott2021-11-21T20:19:41.6020000-06:00That's a nice price point!
895194641296529424386canibalcrab2021-11-21T20:22:31.3180000-06:00I wonder if I can use it for glass while I'm at shows
896194641296529424386canibalcrab2021-11-21T20:27:35.0700000-06:00https://www.amazon.com/gp/aw/d/B006MQD7M4/ref=psdcmw_3207126011_t3_B00FZPSX3G instead of this one
897115183069555589125aceat642021-11-29T19:03:20.5930000-06:00Anyone have suggestions on what I could do with some leftover LiFePO4 cells? After I've built my 48v 16S battery I should have 6 cells leftover if none are DOA. Do I make a 12v 4S? 19V 6S? A 12v 4S and a 6v 2S?? These are 280Ah cells too, so they aren't exactly small 😅
898189645236908064768themitch222021-11-29T21:18:38.3190000-06:00Powerwheels racing series car
899189645236908064768themitch222021-11-29T21:18:56.4220000-06:00You'd probably never had to charge between races.
900189645236908064768themitch222021-11-29T21:20:22.0390000-06:00I think they have a battery limit though.
901300080747673288704kenpurcell2021-11-29T21:31:28.4520000-06:00These for your eBike or other backup power? 12v is always useful for something! Although a lot of laptops use 19v wall warts. Infinite laptop time would be useful too!
902115183069555589125aceat642021-11-29T22:06:19.3360000-06:00so a crazy idea I had...
903115183069555589125aceat642021-11-29T22:06:45.4360000-06:00the cells are 3.2v nominal, which means I could probably run a microcontroller straight off the cell without even really worrying about voltage regulation
904115183069555589125aceat642021-11-29T22:08:09.6050000-06:00one cell, an ESP32, lorawan radio and a pelican case and now you've got something that could run for probably weeks, being a relay, tracker, whatever and it'll be entirely self contained, no need for solar panels or being placed somewhere with good sunlight.
905115183069555589125aceat642021-11-29T22:08:26.4430000-06:00now I just need a lorawan project lol
906300080747673288704kenpurcell2021-11-30T08:38:10.8450000-06:00That idea could apply to many things like an ESP32 Cam for a trailcam. For me temp/humidity of a greenhouse or weather station.
907300080747673288704kenpurcell2021-11-30T08:48:16.5450000-06:00Did you build packs with full on BMS? Was thinking a custom car jumper pack would be cool. It could live in the back of the SUV plugged into the remote cigarette lighter and be ready to go for anything. Charge phones & laptops, power lights, etc. The premade ones really suck!
908115183069555589125aceat642021-12-02T18:26:57.3750000-06:00https://cdn.discordapp.com/attachments/300062878676025344/916123302739726336/PXL_20211202_1646206192.mp4?ex=67b9c290&is=67b87110&hm=e710a5913b55265a009a068f696d73dceacf077a632937fa9f972d76719c7af2&
909115183069555589125aceat642021-12-02T18:27:18.8370000-06:00got some flexible LED filaments
910194641296529424386canibalcrab2021-12-02T19:09:58.8230000-06:00those look cool. I need to play with some
911115183069555589125aceat642021-12-02T19:17:32.7930000-06:00they can get absurdly bright, one strand was pulling 1.4W
912115183069555589125aceat642021-12-02T19:17:50.8190000-06:00had to limit the current because it was blinding
913189645236908064768themitch222021-12-02T20:16:39.0400000-06:00So much cyberpunk jacket potential
914300080747673288704kenpurcell2021-12-06T12:39:10.2720000-06:00Wild! I had some of the rigid ones but that is soo much cooler!
915188482200658903040skyspook2021-12-06T12:59:36.6160000-06:00Those are very neat. Didn't see a lot of vendors, but saw this one: https://www.brickstuff.com/store/p198/flexfilament.html Not too pricey.
916194641296529424386canibalcrab2021-12-06T13:09:19.8030000-06:00we were looking on AliExpress
917194641296529424386canibalcrab2021-12-06T13:09:51.2100000-06:00theres 1300mm toodms (1)
918188482200658903040skyspook2021-12-06T13:22:58.3940000-06:00I keep forgetting to look there... and it also requires I'm patient and don't want near-instant gratification.
919115183069555589125aceat642021-12-06T15:27:26.4370000-06:00I buy aliexpress stuff all the time then forget about the orders
920115183069555589125aceat642021-12-06T15:27:34.0930000-06:00so randomly I get presents from myself
921188482200658903040skyspook2021-12-06T17:26:18.0930000-06:00I do love presents from my past self...
922300080747673288704kenpurcell2021-12-06T17:50:44.3840000-06:00Surprise AliExpress gifts are the best! The 1300mm are not too bad $$$ but limited colors for now, warm white, cool white, red, green, blue. Come on purple!
923115183069555589125aceat642021-12-06T17:54:34.2290000-06:00I can't wait until someone figures out addressable RGB in this format
924300080747673288704kenpurcell2021-12-06T18:03:43.6860000-06:00that would really be a game changer.
925189645236908064768themitch222021-12-06T19:45:40.8320000-06:00These would be cool in even regular RGB
926115183069555589125aceat642021-12-10T15:03:48.0170000-06:00https://cdn.discordapp.com/attachments/300062878676025344/918971283377627166/PXL_20211210_210145223.jpg?ex=67b992f3&is=67b84173&hm=350ff7f70cfa8069478ea1185e0276d2d122739724ac18d2035a869295b3a4d7&
927115183069555589125aceat642021-12-10T15:04:02.4740000-06:00Is a 0.3v drop pretty normal or should I be using larger than 12awg wires? That's like 6W of loss I think
928188482200658903040skyspook2021-12-10T15:08:36.5680000-06:00Bigger is better
929188482200658903040skyspook2021-12-10T15:09:18.3590000-06:00Might want to make sure it's actually 12awg and really copper - lots of fake wiring out there unfortunately
930540021655909695488michaelb52502021-12-10T15:09:25.5840000-06:00You'll get a more accurate check of drop in the wires by measuring the voltage across the wire itself, in the mV setting. I usually wouldn't trust the last digit of a meter. If 6W is too much loss for you then yeah go bigger but as long the insulation isn't getting soft and you don't smell it you shouldn't have major issues. There's also no harm going bigger.
931115183069555589125aceat642021-12-10T15:10:12.2840000-06:00It's legit wire (GXL), I bought from a trusted source :)
932115183069555589125aceat642021-12-10T15:10:51.7760000-06:00The wires are just barely warmer than ambient, so I'm not too worried on that front.
933115183069555589125aceat642021-12-10T15:11:23.4550000-06:00Guess I'll see if I have any lugs that would work with my 8awg GXL and these posts
934540021655909695488michaelb52502021-12-10T15:11:25.4340000-06:00I'm a big fan of charts like this for wire sizing. https://i0.wp.com/www.theengineblock.com/wp-content/uploads/2018/10/Wiring101.Chart_.Part1_.jpg?resize=633%2C420&ssl=1
935540021655909695488michaelb52502021-12-10T15:12:06.2930000-06:00Usually they're set up for a max voltage drop of 5% or something
936115183069555589125aceat642021-12-10T15:12:08.8730000-06:00I went off the bluesea systems chart
937115183069555589125aceat642021-12-10T15:12:20.8380000-06:00https://cdn.discordapp.com/attachments/300062878676025344/918973434871054416/DC_wire_selection_chartlg.jpg?ex=67b994f4&is=67b84374&hm=332b6a5a6dcd1a5b1a5db9576f0c5314738fbb76b73a12d9636b3ea0b4d844dc&
938540021655909695488michaelb52502021-12-10T15:12:48.6960000-06:00same concept. I don't have a preference just whatever shows up first on google, lol
939115183069555589125aceat642021-12-10T15:12:54.8570000-06:00lol
940115183069555589125aceat642021-12-10T15:13:43.8740000-06:00Call me crazy but final install when it's a 48v battery will use 2awg wires
941115183069555589125aceat642021-12-10T15:14:35.1980000-06:00Though I guess that's not terribly crazy for a 5kw inverter
942115183069555589125aceat642021-12-10T15:15:00.3530000-06:00I've got 00 on hand too
943540021655909695488michaelb52502021-12-10T15:16:41.6460000-06:00At some point it's a pita to work with.
944540021655909695488michaelb52502021-12-10T15:17:04.3390000-06:00Most of the time if we need 2/0 at work, we'll spec a pair of smaller wires in parallel instead.
945115183069555589125aceat642021-12-10T15:22:39.1900000-06:00Thankfully I don't have to run the wires far, since the battery will be right under the inverter
946115183069555589125aceat642021-12-10T15:23:16.3060000-06:00I should probably do a build log on the forums
947115183069555589125aceat642021-12-10T15:23:35.5350000-06:00So people can tell me what I'm doing wrong and how it'll burn down my house 🤣
948300080747673288704kenpurcell2021-12-10T15:38:25.6950000-06:00There is a ESR meter in the eLab if you want super low resistance readings.
949609192307341918238mstovenour2021-12-10T19:01:06.8050000-06:00Does your BMS have low voltage cutoff? Given that you are using LiPo I'd assume so but just checking because we nearly burned down a lab because the battery plant didn't have low voltage cutoff. The power supplies are basically constant power output so as the battery voltage drops the input current goes up (toward infinity). The battery plant melted all the insulation off the 2/0 wires we used as the battery voltage dipped toward zero.
950609192307341918238mstovenour2021-12-10T19:01:49.2620000-06:00you can also just use a breaker to trip as the battery current approaches the safety limit of your wires.
951115183069555589125aceat642021-12-10T19:10:54.7020000-06:00it's LiFePO4 cells, so they're a good bit safer thankfully, but I am using a pretty nice BMS that covers pretty much everything
952115183069555589125aceat642021-12-10T19:11:16.7410000-06:00https://overkillsolar.com/product/bms-100a-16s-lifepo4/
953115183069555589125aceat642021-12-10T19:12:16.4410000-06:00the charger is a Victron Energy MultiPlus-II, so I have a ton of control of charge/discharge parameters too
954115183069555589125aceat642021-12-10T19:13:44.5830000-06:00I may end up putting a small microcontoller between them to tell the inverter/charger to stop whenever the BMS calls for it, so I don't have to rely on just the mosfets of the BMS (it can disable charge and discharge independently)
955115183069555589125aceat642021-12-10T19:14:40.9940000-06:00I'm debating between a DC breaker and a fuse right now
956115183069555589125aceat642021-12-10T19:14:56.3160000-06:00as the final failsafe
957115183069555589125aceat642021-12-10T19:15:48.9060000-06:00https://github.com/FurTrader/Overkill-Solar-BMS-Arduino-Library
958115183069555589125aceat642021-12-10T19:16:01.0260000-06:00there's even an arduino library for this BMS, which is nice🔋 (1)
959306262594434629632engpin19642021-12-16T11:35:30.3460000-06:00https://cdn.discordapp.com/attachments/300062878676025344/921093192525414520/IMG_0116.jpg?ex=67b96222&is=67b810a2&hm=149e84c59191f99b4ae0e094944a0cfd40b91018bd90af3d2362e96935275ccd&❤️ (3),😆 (1)
960306262594434629632engpin19642021-12-16T11:35:54.8460000-06:00When you want to feel like you’re at Dms but stuck at home
961559886837150122025ealott2021-12-16T21:00:33.7340000-06:00Has anyone seen any USB to TTL converters around ELab? Preferably one that supports 3.3v RX/TX?
962559886837150122025ealott2021-12-21T18:01:53.3630000-06:00Ah, there are two FTDI cables on the same drawer as the Flukes.
963547106163842613259nullinterface2021-12-29T14:33:28.4690000-06:00anyone ever troubleshoot a USB battery bank + AC inverter?
964388213344236077056doug.emes2022-01-25T21:27:09.2530000-06:00no but i once charged a dead car battery by uisng a float charger plugged into an inverter plugged into a car.... there were no jumper cables
965332931227470397441gtometich2022-01-28T09:42:38.4000000-06:00Do I need to be trained to use the desoldering tools, or is the instruction manual and YouTube ok?
966300080747673288704kenpurcell2022-01-28T09:57:25.0900000-06:00No training required your plan to look up the information should have you covered.
967332931227470397441gtometich2022-01-28T10:08:51.8240000-06:00Thank you!
968300080747673288704kenpurcell2022-01-28T10:13:02.0830000-06:00Not sure where the solder gun is but it normally lives in the bottom drawer of the black toolbox.
969332931227470397441gtometich2022-01-28T11:18:04.6510000-06:00Saw this on Talk, so I’ll just need to look once I get up therehttps://cdn.discordapp.com/attachments/300062878676025344/936671484871594004/IMG_6099.png?ex=67b95e0c&is=67b80c8c&hm=f01f5f8576a48f983037513c28851eeff32a424992ac3bfa7ebe9c26b7e5f1fc&
970300080747673288704kenpurcell2022-02-03T12:02:01.7580000-06:00Interesting idea to essentially unroll a stepper motor into a flat pcb https://youtu.be/uL6e3co4Qqc👍 (1)
971300080747673288704kenpurcell2022-02-03T12:18:09.0050000-06:00another interesting vid https://www.youtube.com/watch?v=xPUEOhMBpUw
972547106163842613259nullinterface2022-02-07T12:36:48.5210000-06:00https://www.facebook.com/groups/259905524039336?multi_permalinks=5371956299500874
973306262594434629632engpin19642022-02-09T16:19:53.8690000-06:00https://cdn.discordapp.com/attachments/300062878676025344/941096094228676638/IMG_0512.png?ex=67b9a4c9&is=67b85349&hm=b6962be5d5903bfe8028646a8cc3def0246c51e878c1b3c02beb409d36a278d2&
974115183069555589125aceat642022-03-12T11:47:50.7730000-06:00https://cdn.discordapp.com/attachments/300062878676025344/952261653121073212/PXL_20220312_174734218.MP.jpg?ex=67b96506&is=67b81386&hm=ba0a8395d0dc0dffe717ffc40a8aeaea1057ddd039464ece7ee733e505f6aa8e&
975115183069555589125aceat642022-03-12T11:48:04.6670000-06:00Got my flipper zero! Time to do some wireless hacking
976115183069555589125aceat642022-03-12T11:48:15.9190000-06:00https://flipperzero.one/
977559886837150122025ealott2022-03-12T18:04:24.7810000-06:00That looks seriously cool. Any interest in doing an informal demo/experiment session at the Space?
978115183069555589125aceat642022-03-12T18:23:09.7360000-06:00sure!
979115183069555589125aceat642022-03-12T18:23:29.0090000-06:00I wonder if anyone else bought one
980316809616828923904hon1nbo2022-03-12T22:46:58.0170000-06:00I was on the fence and ultimately didn't since I'd been burned by too many projects that didn't deliver👍 (1)
981316809616828923904hon1nbo2022-03-12T22:47:02.5320000-06:00Can't wait to see how they do
982190945022399610890timooni2022-03-13T11:07:14.4350000-05:00How unrealistic would it be for a complete beginner like myself to attempt to reflow and test repairing my dead graphics card? Like, it sounds like something that is way over my head, but they're absurdly pricy right now... Or is it something where, if it dies of "old age," it's just beyond repair?
983190945022399610890timooni2022-03-13T11:08:45.1270000-05:00Like I'd have no idea where to begin, how to test and find the fault on a bench without going back and forth with my computer, I know how to solder things ofc... Or does it have a microchip on it, that would make things kinda impossible if that was the part causing the issue lol
984190945022399610890timooni2022-03-13T11:10:23.5310000-05:00On the surface it seems like something really impractical but, I thought what the heck, maybe it's actually not and I just wouldn't have the experience to know if it's not impractical
98597341415431892992jsnowfreedman2022-03-14T21:30:10.0750000-05:00If you don't know what's wrong... It's fairly impractical. There are so many components that could be wrong with it I thought it would be really really difficult to just kind of check everything. If you have an idea on what the issue might be, or if you're aware of some well-known problems like capacitors failing or something.... Those might be easier to actually fix yourself. But unless you have like schematics and a lot of resources... And also have a working board preferably... And better yet a actual PCIe test station or something.... It would be difficult
986306262594434629632engpin19642022-03-27T12:04:19.1110000-05:00Who’s up for a field trip. https://texashillcountry.com/mysterious-tesla-tower-texas/amp/
987316809616828923904hon1nbo2022-03-27T21:12:44.2200000-05:00I drive by this on the way to some family property. Milford is a nice little town. I don't know if they still host it but they had a nice Salsa and Sangria festival to find their park
988115183069555589125aceat642022-03-29T16:36:57.2560000-05:00https://cdn.discordapp.com/attachments/300062878676025344/958479900208136262/PXL_20220329_213622633.MP.jpg?ex=67b99ab7&is=67b84937&hm=b91a33dae62794fc70be042c1a1e920fcffbb85b3d5456f7b91af1ab5fe2c3a1&,https://cdn.discordapp.com/attachments/300062878676025344/958479901114134608/PXL_20220329_213639358.MP.jpg?ex=67b99ab8&is=67b84938&hm=b75bd5b895256154e15008c075c6eb2b72657cef115604905a6bd4cd62e46fb7&
989115183069555589125aceat642022-03-29T16:37:06.1980000-05:00I think I figured out why this sensor stopped reporting lol
990115183069555589125aceat642022-03-31T17:43:07.6030000-05:00I'm at the space for a bit with my flipper zero if anyone wants to play with ithacktheplanet (1)
991115183069555589125aceat642022-03-31T17:43:27.9090000-05:00Totally worked for cloning my RFID
992115183069555589125aceat642022-04-06T12:39:52.1290000-05:00going to be at DMS this evening if anyone wants to check out the Flipper Zero
993115183069555589125aceat642022-04-23T00:30:07.0810000-05:00https://www.youtube.com/watch?v=vGjQcPUfBdM
994115183069555589125aceat642022-04-23T00:30:35.7460000-05:00highlights items that are in short supply or impossible to find
995115183069555589125aceat642022-05-26T15:00:27.1050000-05:00Flipper Zeros are available for pre-order again: https://shop.flipperzero.one/👍 (1)
996300084951594958849jphelps2022-05-27T10:02:33.9450000-05:00Out of stock again 😉
997294269552705929216limeytx2022-05-27T10:02:45.2860000-05:00Hot product!
998300084951594958849jphelps2022-05-27T10:02:55.7090000-05:00I want Pi, more Pi please!
999294269552705929216limeytx2022-05-27T10:03:04.1960000-05:00Right??
1000294269552705929216limeytx2022-05-27T10:03:35.5080000-05:00I think they're saying 2023 for Pi to start shipping to US again, hope that was wrong
1001300084951594958849jphelps2022-05-27T10:05:04.5910000-05:00Scalpers will be sniping them until at least then!
1002294269552705929216limeytx2022-05-27T10:05:51.8410000-05:00Yeah
1003294269552705929216limeytx2022-05-27T10:06:16.4350000-05:00I'm still hunting for a Pi Zero W 2 for a friend
1004189645236908064768themitch222022-05-27T11:39:38.4400000-05:00RP2040's are still available, Pi Pico
1005189645236908064768themitch222022-05-27T11:39:52.4120000-05:00not a linux computer but dual-core ARM microcontroller
1006388213344236077056doug.emes2022-05-27T17:17:19.8820000-05:00How bad ya need it buddy
1007294269552705929216limeytx2022-05-27T19:42:46.0240000-05:00Why does that sound like a "make an offer"? LOL Its not urgent, I run an octoprint server with it on my ender, and my friend who has same printer wants the same set up
1008388213344236077056doug.emes2022-05-27T19:47:07.5870000-05:00I mean, I may have one setup like that right now, in a case, with a picam. I could be convinced with a favor. Muahahahababa😋 (1)
1009207961619538378762denzuko2022-06-17T14:31:14.6330000-05:00Still waiting to get mine. Already got a pwnie pi, badusb (Bluetooth version) and some otg meshtastic nodes. After setting up the v3 rtlsdr I'll drop the coin for two or more flippers.
1010115183069555589125aceat642022-06-17T14:32:03.0340000-05:00They just shipped out another round of orders, so hopefully you'll get it soon👍 (1)
1011206881671671185410pondit2022-06-26T21:31:20.1630000-05:00Do we have anything in the space for writing RFID chips, workign on a programming project and dont wanna sped $50 on one...
1012388213344236077056doug.emes2022-06-27T02:13:15.1240000-05:00Lots of rfid technology which frequently and encoding
1013189645236908064768themitch222022-06-27T15:59:29.0640000-05:00We had a 125khz tag cloner I believe
1014189645236908064768themitch222022-06-27T16:00:14.4390000-05:00You could program the rfid implants for hid prox and other protocols
1015300084951594958849jphelps2022-06-27T17:48:04.0940000-05:00We have a tag cloner/programmer in the Networking Closet, North, for use with members badges, tokens and implants.
1016316809616828923904hon1nbo2022-06-28T22:23:05.9920000-05:00Unless it was replaced with something not the cheap Chinese units (the small white, self-contained one) those are dangerous for implants; it sets the write password on t5577 chips
1017316809616828923904hon1nbo2022-06-28T22:23:35.8420000-05:00Which if you don't get a copy of the password from the unit, which is not always the same, you've effectively set the tag to be read only with whatever was there
1018388213344236077056doug.emes2022-06-30T16:11:50.3480000-05:00https://www.raspberrypi.com/news/raspberry-pi-pico-w-your-6-iot-platform/👍 (2),😍 (1)
1019340919445159673876excalbian2022-07-01T07:53:25.4350000-05:00I stumbled across the data sheet earlier this week and wanted one so bad... any source(s) have them in stock locally yet?
1020294269552705929216limeytx2022-07-01T08:27:52.5040000-05:00Microcenter might have some tomorrow if you're fast enoughhttps://cdn.discordapp.com/attachments/300062878676025344/992421283591639040/unknown.png?ex=67b92818&is=67b7d698&hm=ea49009e8922f31d98f486b99d13b4ffec0dfc5db41d4f2cc27996d9c7bcff48&
1021388213344236077056doug.emes2022-07-02T13:52:43.2920000-05:00https://cdn.discordapp.com/attachments/300062878676025344/992865422057676850/Screenshot_20220702-135228_Chrome.jpg?ex=67b9743b&is=67b822bb&hm=cac42d5843859ea0248737c3130b56aa2d017b6c2659f826df74f33b9496c3bd&
1022388213344236077056doug.emes2022-07-02T13:52:52.7500000-05:00So who got lucky? I slept in
1023340919445159673876excalbian2022-07-03T00:12:41.4540000-05:00Not I. Checked around 9:30 and they showed as "sold out" 😦
1024340919445159673876excalbian2022-07-05T10:44:24.0830000-05:00The guy at Microcenter this morning said they sold out of 76 units in five minutes.👌 (1)
1025294269552705929216limeytx2022-07-06T09:34:04.9140000-05:00Sheesh
1026547106163842613259nullinterface2022-08-23T14:44:07.7710000-05:00fkn low-end consumer electronics designers - why use one 2032 cell when you could use two 2016s with 75% of the energy density and maybe parity on power capability ... *accounting for twice the voltage?*
1027294269552705929216limeytx2022-08-23T17:31:00.1420000-05:00Supply 2 batteries when they could supply just one? Crazy talk Eric lol
1028547106163842613259nullinterface2022-08-23T18:54:52.1310000-05:00or in some cases supply one battery and make it a whole 1.6mm thicker
1029189645236908064768themitch222022-08-24T09:36:20.1710000-05:00Most of the time I thought they stacked two cr2016 to get 6v instead of 3v, no need for a boost circuit.
1030547106163842613259nullinterface2022-08-25T17:13:28.5730000-05:00indeed, however this is an irritation to the user since 2016s effectively cost the same as 2032s. and I've had at least one device that claimed to use 2x2016 or 1x2032 that did not function with the latter.
1031300080747673288704kenpurcell2022-09-09T16:28:28.9520000-05:00https://cdn.discordapp.com/attachments/300062878676025344/1017909383562276904/305392947_2042456469273101_5073501340563006098_n.png?ex=67b998bc&is=67b8473c&hm=f6755251f22918a44c3636344bccc59caf7a30b68706dbd1ca34fc0b0714308c&🤣 (1)
1032194641296529424386canibalcrab2022-11-04T21:34:57.1050000-05:00https://www.hackster.io/news/this-resistor-lamp-mirrors-the-color-codes-of-tested-resistors-9395d60f679b👍 (2),👀 (1)
1033831714763201445929ish074902022-11-14T11:51:16.0290000-06:00Hello all, I have a question. I’m a novice when it comes to electronic, but I’m about to tackle making an led sign. I’ll be wiring in several different LED strips, I’m trying to determine is there an advantage/ disadvanted to wirining them in parallel vs serial? If I can, I’d like to avoid having to solder both sides of the LED. Any advice would help me a lot. Thank you
1034300080747673288704kenpurcell2022-11-14T15:21:04.9620000-06:00The determination on wether to use serial, parallel or serial/parallel is what is the source voltage you want to drive your LED sign from. The forward voltage drop of most high efficiency LEDs is 2.2 volts. So if your using 12 volts (actually 13.8V) from a car, so it is pretty simple to put 5-6 LEDs in series. Here is a pretty good guide http://dangerousprototypes.com/docs/Basic_Light_Emitting_Diode_guide👍 (1)
1035788814313930096662SlashBot#25662022-11-14T16:48:20.2930000-06:00
1036479414501331042307tjs32022-11-15T10:06:06.2370000-06:00(you said LED sign, so I'm assuming individual control... if they are all the same color this may not apply)... For individually addressable LED strips the power is normally paralleled. Stable power is important. Small installations can have a single power connection but for anything larger I normally splice in power every few feet to keep it robust. Control signals go into 1 end of each strip of lights... and can come out the other end to daisy chain to the next strip (or you can start a new chain from your controller if that's easier)👍 (2)
1037831714763201445929ish074902022-11-16T13:08:53.3850000-06:00Thank you all so much for responding. The source of my voltage will be the wall outlet. I’ll end up with 20 individual LED strips.
1038300080747673288704kenpurcell2022-11-16T16:07:05.0840000-06:00Are they individually addressable LEDs or just single color strips?
1039479414501331042307tjs32022-11-16T18:13:59.4980000-06:00if youd like to meet up at the space and go over the LED goals, i could offer more suggestions. im available most evenings but will be out of town Fri-Sun this week
1040831714763201445929ish074902022-11-29T14:29:59.5800000-06:00Tj thanks for the response. I didn’t realize that I missed it. I would definitely like to meet up. I’d appreciate that so much. I was planning to go this evening and tomorrow evening if you’d be free. I just want to make sure I’ve got the right idea with this project.
1041479414501331042307tjs32022-11-30T10:04:34.9520000-06:00i'll be at the space tonight for the 7pm board meeting, would be happy to meet up before or after. I'll keep an eye out to meet up and I'll have my laptop and discord open
1042479414501331042307tjs32022-11-30T19:20:05.2970000-06:00BoD meeting is over, I'll be near the arcade helping with setup and such... Wearing a blue hoodie. Cheers
1043547106163842613259nullinterface2022-12-27T14:32:22.9130000-06:00random, but anyone remember the long shelf life cells that Radio Shack sold in the late 80s-early 90s timeframe that one had to *twist to activate*?
1044547106163842613259nullinterface2022-12-27T14:32:57.4140000-06:00about the size of a D cell in a plastic housing
1045216241443776233472mandarlimaye2022-12-27T16:06:30.7580000-06:00Like these? https://spwindustrial.com/48-d-cell-code-red-emergency-20year-life-twist-top-activated-1-5v-battery-new/👍 (2)
1046194641296529424386canibalcrab2022-12-27T16:16:43.3140000-06:00that's wild. does it connect terminals when twisted? or is this some kind of glow stick magic
1047316809616828923904hon1nbo2022-12-28T00:12:15.8050000-06:00It's a chem mix IIRC. They also were a little under voltage. Modern pre activated chems can have a shelf like of 15 years if you get the industrial and critical load versions.
1048316809616828923904hon1nbo2022-12-28T00:13:07.0560000-06:00I think Procell is 10 years (though have to source carefully now it seems, last Amazon batch were ripoffs. I last got some from Metroplex Battery)
1049547106163842613259nullinterface2022-12-29T09:09:53.9820000-06:00Thanks. That's what I was remembering.
1050547106163842613259nullinterface2022-12-29T09:11:27.1430000-06:00and ... ***dang*** ... that's expensive
1051547106163842613259nullinterface2022-12-29T09:23:11.6250000-06:00some fragmented speculative info here https://www.candlepowerforums.com/threads/un-activated-d-cells.205925/
1052977629003185799168chadpursley2023-03-05T12:25:59.7900000-06:00Help, how do I get the projector in the Lecture hall working?
1053188787712713555970freakd2024-01-03T17:57:00.0070000-06:00Hey, I'm Roy, new to the space! 👋 I've visited once and was amazed, planning to sign up soon! I have a Gaggia Classic Pro that I want to install a PID mod for, and ideally play with Gagguino. My electronics skills are a bit rusty, I'd love some help in exchange for helping in any software / cybersecurity projects you may have! If anyone is up for that, I'm planning to come to the space during the weekend (Fri / Sat) and bring everything, so let me know if you feel like joining 🙂