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Learning to recycle old electronics (components) by Fanny Blonnerstere - Tue, 14 Nov 2017 19:16:29 EST ID:zIm1Srig No.7158 Ignore Report Reply Quick Reply
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HI guys. This board seemed more suitable than /tech/.

My dear dad just passed away. He was an electronics hoarder (according to my mom at least). He collected a ton of broken, old or discarded but still working electronic equipment in my parent's garage. My dad was more of a collector than electrical engineer. He knew how to solder neatly and could name some components and what their specs meant. But he never really made anything out of his collection. One of the few things I remember was him fixing a radio that needed a component change.

My mom wanted to throw away all the "junk" when dad died, but I ended up taking most of them. I love electronics but I've never been good at them on a technical level. I'm more of a software guy. I know my basic electronics from physics class up until ohm's and kirchoff's laws. I can read a circuit diagram and have some clue about voltage, current and resistance. I'm not a complete noobie, but I'm still really really bad at electronics and have no idea how to approach a project.

I wanna recycle the old stuff my dad left. Salvage individual components, test to see if they work, organize them according to their properties, and make something new from them. My dream for a while has been building a radio transmitter. I've already got a super cool AM/FM receiver that can do all sorts of magic tricks but I lack a transmitter. I've done some googling, but a lot of it flies over my head.

So, I need sources about electronics. I want to learn. My dad left me a soldering iron so I got that covered. I probably should get some tools to remove singular components from circuit boards. The biggest issue is finding out if the components are still functional. Some of the stuff is from the 60s! Any easy way to do so?

Sorry for being all over the place with this post. I only took the mandatory electronics classes so I'm pretty intimidated. No clue where to start building my radio for example. Should I just pick everything apart and then start assembling components that fit together? There are plenty of radio transmitter schematics online.
Fanny Blonnerstere - Tue, 14 Nov 2017 19:25:00 EST ID:zIm1Srig No.7159 Ignore Report Quick Reply
>So, I need sources about electronics.
By this I mean that I could use some (e)book recommendations or manuals that explain how electricity works. I should probably invest in those waffel-looking boards you can build small projects on. I have no idea what they're called. Recommendations?
Fuck Senkindock - Tue, 21 Nov 2017 20:57:13 EST ID:Zrqg/sI0 No.7160 Ignore Report Quick Reply

>waffel-looking boards
They are called bread boards.

tldr: All currents through a node sum to zero, all voltages in a loop sum to zero.

Look for an online Circuit analysis class to understand how electricity behaves, then look for an Electronics 1 course and Logic Design course online. That should set you straight.

Geeks by Alice Greenfoot - Thu, 25 Oct 2012 12:55:33 EST ID:dKl95iv8 No.5036 Ignore Report Reply Quick Reply
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"Have fun sitting in front of a computer all day staring at a screen you silly CprEs and ChEs, leave the heavy stuff for the big boys"
Construction Engineers and Civil Engineers
30 posts and 3 images omitted. Click Reply to view.
Jenny Wenkintug - Fri, 01 Sep 2017 02:50:54 EST ID:Y5pt/Mbc No.7151 Ignore Report Quick Reply
i also sit in front of a computer all day ... machinist ...
William Blivingset - Sat, 16 Sep 2017 19:31:34 EST ID:TK6lF4do No.7153 Ignore Report Quick Reply
Know them feels, I graduated with mechanical in 2014 right when oil bottomed out. The position I thought I had lined up ceased to exist and I didn't have much luck afterwards due to lack of experience, almost everything in my region is tied to petrochem. I recently started a construction materials technician job for a geotechnical firm just so I can be somewhat in my industry for experience. The pay isn't great but there's so much construction going on I can get plenty of o.t. every week.
William Bremmerfodging - Tue, 19 Sep 2017 03:58:49 EST ID:IIl/zDcN No.7154 Ignore Report Quick Reply
wow the most recent thread on /tesla/ was made in 2012. maybe we should give it a fucking icon?
Hedda Lightshit - Wed, 20 Sep 2017 18:09:21 EST ID:CIqbsWn5 No.7155 Ignore Report Quick Reply
lol :)
Jenny Sengerkit - Sun, 12 Nov 2017 09:58:24 EST ID:U0gJ/NiL No.7156 Ignore Report Quick Reply

Deck by Fucking Banningstog - Tue, 27 Sep 2016 02:17:08 EST ID:OiQL0CQb No.7000 Ignore Report Reply Quick Reply
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Crossposting from the various cyberpunk boards, what does /tesla/ think of building a Gibson style deck, would it have engie applications, and what would you build into it?

2 posts omitted. Click Reply to view.
Ernest Fuckinghood - Tue, 29 Nov 2016 14:28:45 EST ID:WmLOnol0 No.7020 Ignore Report Quick Reply
So it's like a modern Commodore64 hooked up to an oculus?
Matilda Billingstock - Sun, 04 Dec 2016 19:00:25 EST ID:30FJJK9g No.7023 Ignore Report Quick Reply
c; much appreciate
Rebecca Ginnerstare - Wed, 07 Dec 2016 21:57:59 EST ID:dLNwpFpO No.7029 Ignore Report Quick Reply
Since you're giving up on ever having sex anyway, you might as well just embed steno keyboards on your person. You might actually use them.
Doris Cavingford - Sun, 23 Apr 2017 16:50:35 EST ID:TtLkJ3ky No.7120 Ignore Report Quick Reply
That thing looks pretty cool.

What kind of glasses are those?
Samuel Shittingfoot - Sun, 03 Sep 2017 13:08:17 EST ID:tPSAH1Zr No.7152 Ignore Report Quick Reply
Sick idea OP
keep us posted console cowboy!

Just started as an electrician by Basil Sashsot - Mon, 15 May 2017 12:53:41 EST ID:BwDcuBKU No.7125 Ignore Report Reply Quick Reply
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>first job as an electrician.
6 posts omitted. Click Reply to view.
Augustus Gebbleman - Thu, 06 Jul 2017 17:22:34 EST ID:ECt2lUwZ No.7142 Ignore Report Quick Reply
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That looks like new construction, how the fuck have you shocked yourself 6 times on lines that shouldn't even be hot?

At first, looking in the trash bin, your pigtails looked fine - then I saw that box on the far right side of the OP picture. If you did that, I want to kick you in the balls, how the fuck are you even going to attach an outlet to that?

Also, yes depending on the job (especially remodels), it's common to have multiple crews working at the same time. New construction is a little better on this front.

Honestly, if you can get into only new construction, it's the way to go in my opinion. Remodels can be a pita when you start looking at how previous electricians (or worse the homeowner) have done things.
Like seriously, I've been on jobs where the previous electrician ran 8ga wire from a hottub to the breaker box, ran out of wire inside the breakerbox and crimped a couple 6 inch lengths of 12ga in between the 8ga and the breaker.
I have worse stories if you'd like.
Augustus Gebbleman - Thu, 06 Jul 2017 17:24:34 EST ID:ECt2lUwZ No.7143 Ignore Report Quick Reply
forgot to mention, the first sentence of my post is a joke ;)

rest of it is serious. and also, running the hot tub off those 12ga wires had melted the insulator off 'em. I should have taken a picture, it was fucked.
Sidney Nobblewell - Sun, 16 Jul 2017 06:58:41 EST ID:IZhvBj47 No.7144 Ignore Report Quick Reply
I had a summer job as an electrician once, the guy I was helping out was able to strip pvc wire isolation with his finger nails.
I don't know if he had some rare condition or something but this did happen.
Rebecca Smallgold - Tue, 25 Jul 2017 13:49:45 EST ID:gVkN3OHL No.7146 Ignore Report Quick Reply
Journeyman requirement (for E2 license):
  • 762 hours required instruction (one year of trade school day class, one and a half years of trade school night class)
-8000 hours of labor (if union, 10000 hours) which is about 4 years of full time work, non stop

This is most states in the USA
Cyril Buzzhood - Sat, 12 Aug 2017 13:51:57 EST ID:wpVRWHiC No.7149 Ignore Report Quick Reply
Always leave yourself extra room for making connections

watch your tools

before you ask how something works, use your meter and poke around a bit. you can probably learn something.

How fix roof by Emma Turveydale - Sun, 25 Jun 2017 13:54:25 EST ID:nZyDw8HR No.7137 Ignore Report Reply Quick Reply
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idk where to ask this but engineers pls help
i have this wooden shack in the garden and the roof is rotten and it leaks when storm.
i can patch it a bit with tar, but its wont be enough so..
tl:dr any advice/protip to fix leaky roof??
Alice Turveyhood - Tue, 27 Jun 2017 00:38:44 EST ID:xyQX1nR+ No.7138 Ignore Report Quick Reply
cover it with tin
Reuben Hendlesteck - Wed, 05 Jul 2017 02:58:37 EST ID:0JPUXxhk No.7140 Ignore Report Quick Reply
Well how much do you want to spend on it, and what's the general aesthetic you're trying to maintain?
Basil Mogglefedge - Fri, 11 Aug 2017 07:48:07 EST ID:Qvyc/LxJ No.7148 Ignore Report Quick Reply
Put a big tarpaulin over it

The Peace Ray and Power Switch by Fucking Dinderchot - Thu, 17 Apr 2014 16:32:33 EST ID:LNG8f7Rs No.6253 Ignore Report Reply Quick Reply
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First of all I would like you to share with me any of your ideas pertaining to particle based weapons. I do not care about efficiency.

Second: Has anyone thought about focusing whole cities worth of electricity to a single city block? What would prevent this and how destructive could it potentially be?
10 posts omitted. Click Reply to view.
Ian Pittfoot - Thu, 24 Apr 2014 01:09:32 EST ID:KULKiVdY No.6280 Ignore Report Quick Reply

Neither have you.
Shit Tillingbanks - Sat, 26 Apr 2014 00:21:13 EST ID:FMSlzPfk No.6283 Ignore Report Quick Reply
Focusing whole cities worth of electricity to a single block? Electricity isnt like light in that it can be 'focused'. You could make a machine which consumes the same amount of power as what a city would consume, but essentially you're looking at making a huge heater or fan or something which would never recieve full power because the city transmission network is equipped with protective devices to prevent exactly that from happening
Priscilla Turveyford - Wed, 30 Nov 2016 03:53:53 EST ID:wXQYwiD/ No.7022 Ignore Report Quick Reply
>Second: Has anyone thought about focusing whole cities worth of electricity to a single city block? What would prevent this and how destructive could it potentially be?
It would turn the air into plasma and melt/burn everything.
Prevention of an attack depends on the method of delivery. But I didn't propose any, I just told you what would happen.

It would probably be very fun to watch.. from afar.
Acaelus - Mon, 06 Feb 2017 19:25:51 EST ID:2e0ggO16 No.7043 Ignore Report Quick Reply
Probably more fun from up close.

But yeah how would the "power" be transfered to the block? What specifically is it transfered to?

If it is just transfered to everything equally, how high and low would the power be transfered into the atmosphere/earth.
Charlotte Blatherworth - Wed, 26 Apr 2017 18:20:59 EST ID:BbwchrDn No.7121 Ignore Report Quick Reply
x ~ -

Title 24 Energy compliance/Thermal properties of CMU by Molly Blabbleford - Thu, 15 Jun 2017 23:56:29 EST ID:ff47CWkA No.7135 Ignore Report Reply Quick Reply
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I'm trying to make constructions in trace 700 to match title 24 baseline requirments. Light/Heavy Masonry walls are giving me trouble. Its kind of a long shot to ask here but if there any Trace (or any energy modeling software) users that have done constructions for title 24 CMU's, I would appreciate a simple explanation of what you did to achieve baseline requirements for your constructions.

pick related

Good resources for Beginning Electrical Engineering? by Isabella Fanfoot - Wed, 19 Apr 2017 17:13:48 EST ID:kZFkh/Yo No.7119 Ignore Report Reply Quick Reply
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Hey /tesla/, Just started taking my EE Pre-Reqs and am having trouble keeping up with stuff like circuit design (ie, I have no idea how to do pic related).

I tend to learn by doing problems, so do you guys have recommendations for textbooks with circuit problems?
Samuel Cleckletun - Thu, 11 May 2017 23:08:33 EST ID:FE8bC1PI No.7123 Ignore Report Quick Reply

Smith-goodman diagram by Samuel Hussleham - Tue, 04 Apr 2017 13:00:35 EST ID:tgH2zb8W No.7117 Ignore Report Reply Quick Reply
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Hey, this is kinda long shot but here I go.

I want to create (or find) a program that will construct smith-goodman fatigue diagram for common steels. I'm studying mechanical engineering in eastern europe and the lectures weren't really thourough. I would really appreciate some help on this. Even some good literature online would be great help. Thanks.

picture is not related
Doris Tillingspear - Thu, 06 Apr 2017 12:28:34 EST ID:LMSWX1C6 No.7118 Ignore Report Quick Reply

As far as for steel, you might be able to request a data book from a major supplier, or see if they have PDF versions available for download.

GD&T for Dumb-dumbs by Samuel Bepperpure - Tue, 28 Mar 2017 22:02:10 EST ID:LMSWX1C6 No.7114 Ignore Report Reply Quick Reply
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What are some of the best GD&T resources that don't make you want to shove a nail through your eyesockets?

I've got The Ultimate GD&T Pocket Guide, and it's not to bad, but still self-referential in areas, or doesn't go into enough detail on certain subjects.

I think CNCookbook has a GD&T course, and I know his stuff is usually straightforward. I'll have to check that out sometime soon.
Shit Worringdock - Thu, 30 Mar 2017 12:51:10 EST ID:IZhvBj47 No.7115 Ignore Report Quick Reply
Your mechanical engineering high school textbook(s) perhaps?
I had 4 volumes, but they are long lost.
Barnaby Gindlekag - Thu, 30 Mar 2017 14:19:18 EST ID:LMSWX1C6 No.7116 Ignore Report Quick Reply

Never went to school for it, so no textbooks to reference.

Been in the manufacturing field working with my father as a kid, since the early 00's. The thing is that the old easy to read dimensional drawings are slowly being phased out in certain industries towards pure GD&T true position messes. It pays more if you're fluent in it, but it's certainly a lot of hieroglyphs that take time to get use to. .

Where to order custom plastic parts ? by Reuben Clockleway - Wed, 04 Nov 2015 16:48:00 EST ID:mF3DWO7C No.6830 Ignore Report Reply Quick Reply
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I hope this is the right thread.
Can anyone link me to a company that does custom plastic parts ? I live in the EU if that matters.
The part i need to order is a 10,5 x 10,5 x 1,5 box that is empty inside. How would you design a simple box like that so it would be nice to look at and access the inside?, Just make the bottom a different piece and add screw holders to the inside corners ? Also id like the product to be off the surface about 0.5 cm. What would be the best way to achieve this ? Legs ofc but any good ideas ?

If plastic molding is not the best option you can think of than what would be to produce around 50 of these kind of boxes for the beginning ? Was thinking about wood but it has to be commercially acceptable and if i need to make 50 boxes i am afraid they wont look all 1:1 the same hehh..

Thanks and dont mind the typos:) !
2 posts omitted. Click Reply to view.
Polly Clollerpig - Sun, 08 Nov 2015 07:57:49 EST ID:z0IUPjyn No.6833 Ignore Report Quick Reply
If you only need 50 make the boxes out of plywood or acrylic with a laser cutter.
It's way cheaper than 3D printing and manually assembling them isn't that much work.
A Wizard - Wed, 16 Dec 2015 01:49:50 EST ID:XN1Cd6M9 No.6854 Ignore Report Quick Reply

Find some fourth graders. I'm pretty sure they won't need much instruction.
Ernest Gabberstuck - Mon, 21 Nov 2016 15:07:37 EST ID:nz8yEnGt No.7016 Ignore Report Quick Reply


you can have them hydraulic pressed into forms that are in the shape and size of your desired plates, which you then glue or weld together. Also you dont even need it in the same size but you can cut them from bigger one.
William Hobberwedging - Thu, 24 Nov 2016 13:17:14 EST ID:LMSWX1C6 No.7017 Ignore Report Quick Reply
The Brits use to have a shit ton of industry in the day, and I have machines that are proof of those olden days of industry. Although every time I deal with them trying to get parts for said machines, they seem to be reluctant, because that they seem to really hate having to deal with international shipping. I mean I could refer you to a shit ton of shops within the US. Look up industrial parks in your area and then check out what's there. You might find some plastic molding shops, or at least some machines shops that make you molds for you to use. Little, dank job shops are usually the most desperate for work, but even mid sized 20+ machine shops will work with you off the street. Mega shops not so much.
Ian Turveyfoot - Sun, 19 Mar 2017 03:42:42 EST ID:IZhvBj47 No.7113 Ignore Report Quick Reply
Just make the boxes out of laser cut panels, either with acrylic or plywood.
That will be the most economical version if you make the CAD drawings yourself.

Arduino/rasp Pi or other by tech head - Sun, 25 Sep 2016 04:01:48 EST ID:0BrDnpk/ No.6998 Ignore Report Reply Quick Reply
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hey tesla/
does anyone know how to make an interactive audio installation using Arduino or Raspberry Pi to trigger pre-recorded loops that synchronize?

would love to create but dont know how!

Should I be on another board?

Think engineers would have a field day tho!
Fucking Banningstog - Tue, 27 Sep 2016 02:05:23 EST ID:OiQL0CQb No.6999 Ignore Report Quick Reply
Maybe /m/, that's a busier board, you're more likely to find some sound engie or roadie or DJ who knows how to set up stuff like that.
Sophie Tillingdock - Mon, 03 Oct 2016 13:19:43 EST ID:LMSWX1C6 No.7006 Ignore Report Quick Reply

What's your familiarity with programming and setting up software packages you've never used before? I'd say you need either a good intermediate knowledge of C++, or Java (takes more packages to get working) or whatever language they might have compatibility with now.
On the Arduino I'm sure you could copy paste from preexisting MIDI projects and customize it a bit. It would still be best to have fundamental understanding of the syntax and semantics of the language.
Now you could allows hook that to an old laptop and have the little MIDI controller you essential just made defined on your DAW.
If you insist on it being on the Rasberry Pi, you either got to find a preexisting similar project and configure it to your needs. You'll need a simple audio library that supports simultaneous sounds. I'm not sure how well the R-Pi can handle audio processing, if it's giving it to much trouble you might have to reduce the sample rates of the audio files.

So either some intermediate programming skills, or just try diving balls deep into the preexisting tutorials and projects and mangling them till they work for you.
Edwin Gizzleson - Fri, 21 Oct 2016 04:00:11 EST ID:H926XZ8b No.7010 Ignore Report Quick Reply
Charlotte Fullyridge - Sun, 15 Jan 2017 16:12:56 EST ID:umzRyjso No.7039 Ignore Report Quick Reply
yes i have a rasp pi and while it's a little piece of shit, I just need to get a case for it and install a touchpad.
It runs linux and will absolutely handle homebrew audio stuff, as you can absolutely add sensors like mic and audio in and there's both a 3.5 jack and an hdmi port that does audio out to the tv system.
right now I can play piano on my keyboard, mp3 & youtube.
add a midi pad and you can do digital effects with like garageband or fender fuse, something like that
I wouldn't bother with arduino
Cedric Goodford - Sat, 11 Mar 2017 14:42:10 EST ID:IZhvBj47 No.7112 Ignore Report Quick Reply
Get a raspberry pi 3, learn to set it up so it runs headless.
I'd use this for the task at hand, but your approach will differ.

Well at least you have to know some programming language already, right?

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