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/diy/ - Do-It-Yourself


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1518263 No.1518263 [Reply] [Original] [archived.moe]

I've built a MOT arc welder. It works fine for the most part, but I wanted to rectify it.
Except I regulate it at the primary (which is retarded but not entirely dysfunctional apparently) and I was wondering whether it would even really work.
I'm using an SCR regulator, so I imagine the resulting sine wave looks like shit (I blame that for the amount of spatter in my welding, together with the chinkshit rods.)
What would it even look like after rectification? I don't have an oscilloscope yet...



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1518246 No.1518246 [Reply] [Original] [archived.moe]

Considering going into cabinet making since social skills are shit and intrests aren't profitable isn't high enough to justify going to uni but I'm concerned about the long term physical toll.
I'm probably slightly above average intelligence wise but not enough to justify going to uni
Would any of you guys say it was/is worth it?
Additionally what's furniture design like?

>> No.1518265

Unless you have a fetish for precision, cabinet-making might not be for you. I've had a hand in making a few with other people and jesus fuck you have to be careful if you want something neat.



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1518081 No.1518081 [Reply] [Original] [archived.moe]

I'm going to be putting up a prefab garage soon, and I'm thinking about putting in a mechanic pit or possibly getting a two post lift, which would be better but cost more.

Have any of you done this? Any idea or tips would be great.

>> No.1518087

two sentences: shipping container

>> No.1518088

>>1518087
stop it with this meme. horrible installation and corrosion. there's a reason they're disposable.

>> No.1518103

>>1518087
You don't know what a mechanics pit is do you.... It's to work on cars not a sex dungeon

>> No.1518165

>>1518103
Why not both?

>> No.1518226

>>1518165
This. Anybody who hasn’t had a girl with no panties sitting on their workbench isn’t a real man.



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1518024 No.1518024 [Reply] [Original] [archived.moe]

looking for an easy tutorial on how to put a bed desk together that can support by desktop unit and can slide sideways so I can pull it/push it on/off the bed and I can lay down and play video game in bed like a fat piece of shit
i have planks

1 replies omitted. Click Reply to view.
>> No.1518118

Trust me you don't want it anon
it sounds comfy but the more relaxed you are the more tired and sluggish you will be
Sitting at a desk isn't too comfy but your energy levels are way higher because of it

A few years ago I did pretty much what you did and my entire house was neglected, I would just throw empty bottles randomy away from my bed and never get dressed or shave, didn't do the dishes ever, just kept using dirty plates or not using them at all

The more energy you output, the more you will have

>> No.1518133

>>1518118
i am suffering from this now.
spend my whole weekend off laying in bed, watching movies, surfing the internet and playing vidya
entire house is neglected. i have piles of shit gathering and growing all around my bed.
i can estimate if i keep this up i will have a hoarder-lazy-person nightmare house with piles of unsortable filth piled everywhere and only a trail cutting through the debris going from bedroom, to kitchen to bathroom

>> No.1518137

>>1518118
>>1518133
this ain't a fucking radio advice calling session
unless you have links to a tutorial for a bed desk take your pity party bullshit somewhere else

>> No.1518142

>>1518137
I dont believe someone like you has the guff to actually build this thing

>> No.1518194

>>1518137
i already fucking told you how to do it. fuck you if you don't have the imagination to figure it out.



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1518006 No.1518006 [Reply] [Original] [archived.moe]

1997 4.3 Sonoma vs 1999 3.9 Dakota

I am on the fence between these two. The Dakota is in better condition but the price reflects that. I just need something as a beater truck but it needs to run reliably. Sway me /o/.

9 replies omitted. Click Reply to view.
>> No.1518071

>>1518048
I gotta call you out again, sorry. It is not a 1993, it is a 1997. The 3.9 was a Chrysler V6 in 1997.

>> No.1518085

>>1518071
Now I have to correct myself. It's a 1999. lol

>> No.1518141

>>1518071
Muh bad I guess we assume what we read sometimes. I lack vision and one eye but I can't convince my brain to understand. I must have seen the 3.9 and made a 93 out of it. Its a harder choice now. But those little GMs is good. I'm mopar faithful but I know that's just politics.

>> No.1518143
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1518143

why is this stupid assed /o/ thread still up.

not /diy/. go shit on your own board. we have enough 14 year old children here already.

>> No.1518157

>>1518143
/o/ is dangerously stupid. Better they come here.



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1517989 No.1517989 [Reply] [Original] [archived.moe]

Anyone got any guides on procuring/building your own spy gadgets, psyonic devices etc???

I already built my own rudimentary neurophone, but Id like more info on radios (maybe something that can catch number station broadcasts, I spent most of my time in Mexico and due to the cartel activity I might be able to get to a trove if I intercept the transmission early), transmitters, Faraday cages, signal jammers etc.

Any infographics would be greatly appreciated too.

>> No.1518011

>>1517989
http://lmgtfy.com/?q=diy+crystal+radio



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1517983 No.1517983 [Reply] [Original] [archived.moe]

Hi, i bought a handmade guitar for a real low price (like 15$), it had no keys, bridge nor strings. I mounted the bridge today and tried to check wether everything is alright and tensed a string near pickups, "played" it, and it made no sound.

I don't have an amplifier, since i enjoyed learning to play acoustic guitar I just bought it to play Rocksmith on PC and borrowed my friends cable to check if the guitar is functional.
The cable is working, thats what im sure of.

Since the pickups are handmade i suspect they are the problem since magnets in them glued off and sometimes move around. Can someone help me and tell me how should they work? Maybe they are polarized wrong? Any help would be appreciated.

16 replies omitted. Click Reply to view.
>> No.1518067

>>1518064
Ill put one string in it in a moment and check it like that then

>> No.1518068

>>1517983
What is the distance between pickup and string?
ref
https://www.thegearpage.net/board/index.php?threads/pickups-to-string-distance-how-much-how-important.297765/

Too close (or too far) can make what you are seeing happen.

Assuming all else is correct.

>> No.1518173

>>1518055
I'm the painter from the other thread.
It seems that at leat one of the mic is working otherwise there would be no signal. Then again, you're the most fit to find out

>> No.1518184

>>1518173
Thanks, Ill post some updates tomorrow as Ill have more time

>> No.1518202

>>1517990
fucking retard.



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1517883 No.1517883 [Reply] [Original] [archived.moe]

Anyone here with renault clio 4 pic rel?
I bought rear view camera and I want to install it above license plate, what is the easiest way to get the cable through?



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1517880 No.1517880 [Reply] [Original] [archived.moe]

Good evening fellows,

Its Christmas, so I got a bonus from work. considering getting a laser cutter for making shitty PCBs and cutting cheapo thin ply for RC aircraft.

I'm looking more towards laser cutters over milling machines (Cheaper lasers are better than cheaper milling machines supposedly)

I have about £350-450 to spend, anyone have any suggestions, tips etc?

CO preferably as cutting acrylic would be nice!



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1517784 No.1517784 [Reply] [Original] [archived.moe]

a sansula is a kalimba mounted on a skin to make it resonnant. anyone knows if i could simply put a bit of clear tape over the hole to prevent it from spreading and vibrating all over the place ? i'm worried it will muffle the sound

1 replies omitted. Click Reply to view.
>> No.1517794

It's fucked, best bet is to use as is

>> No.1517798

>>1517792
it's under heavy tension but it's not real skin, it's more like paper

>> No.1517805

i might betray the board and go to a professionnal to get it repaired then

>> No.1517825

>>1517784
Tape it, it should be fine. Tape it on both sides.

Also: https://www.weplaywelltogether.com/pages/hokema-sansula-repair-program

>> No.1518017

how is this any different from a tiny drum?
Do what you would do for a drum.



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1517743 No.1517743 [Reply] [Original] [archived.moe]

I design microcontrollers as a hobby. Any computer engineers on this board?

I'm trying to get into IC layouts...

>> No.1517952

That thing gave me anxiety from thinking about the logic flow from just one point. Thanks op.

>> No.1518233

Op got any good books to read? I enjoy Arduino and those little attiny chips for projects but I don't know how they get a computer in such a small space.



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1517736 No.1517736 [DELETED]  [Reply] [Original] [archived.moe]

ppl i need some new innovative ideas for school project.The topic is creating something new in accessories,clothes and shoes

>> No.1517740

>>1517736
A jacket that you can charge and use as a portable power supply to charge other shit?

>> No.1517751

>>1517736
A full hd screen shaped like a contact lens which you can put in your eye



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1517692 No.1517692 [Reply] [Original] [archived.moe]

I plugged the battery charger lead into a four channel receiver and it went up in smoke. It said BAT which I thought meant battery.

5 replies omitted. Click Reply to view.
>> No.1517711

>>1517692
>It said BAT which I thought meant battery.
Yes. It does. Why the fuck are you plugging a charger into a port labelled for a battery? Do you not know the difference between the two?

>> No.1517752

>>1517692
Chargers are constant current sources you cannot use them to power shit you retard

>> No.1517770

>>1517752
sure you can, just not rc stuff apparently

>> No.1517972

>>1517711
I plugged the charging output from the battery .

>> No.1518001

>>1517692
This isn't an RC problem, it's an OP problem. They have a rated input voltage which you should've familiarized yourself with before doing stupid shit.



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1517669 No.1517669 [Reply] [Original] [archived.moe]

Which one is common? It's all the same color and there are no markings.

10 replies omitted. Click Reply to view.
>> No.1517705

>>1517698
I did. It's still too bright. At my old place I had a dimmer and turned it almost all the way down on a single 40 watt bulb.

>> No.1517706

>>1517695
Have you looked for a lower wattage light for the bathroom?

Just take the dimmer back to the store and read the boxes, they clearly say if they need a neutral or not.

>> No.1517725

you could use a potentiometer but you'll get vampire drain like crazy.

>> No.1518245

>>1517698
>how can light being too bright
le vampire

>> No.1518247

>>1517705
what type of light anon? led? florescent? cfl?

Old wiring code didnt require a neutral/common until like 2011 or so... they still make dimmers that will work for you but you need to provide more info.



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1517647 No.1517647 [Reply] [Original] [archived.moe]

idk where to post this smd
are those tiny dirt bugs, idk if they're aphids but they look like them, they're white
are those dangerous to snails? i just rescued a snail and just used soil from my garden to house it and i can see those tiny little white fucks in there

>> No.1517655

Yeah your snails fucked, nice work

>> No.1517656

>>1517647
Honestly, get the .22 an take him out behind the shed, snails as good as dead, put him out of his misery

>> No.1517685

>>1517647
Look like termites.
RiP OP's house.

>> No.1517775

From the shitty pic quality it looks like a decent rice harvest mate!
>saved a snail
Nigger what are you doing? Snails and slugs are cancer to a garden.

>> No.1517827

>>1517647
Those are springtails (Collembola) and are harmless. They help compost things in the soil.



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1517636 No.1517636 [Reply] [Original] [archived.moe]

inoperable edition: >>1512030

>RULES
0. Electrics ≠ electronics. Mains wiring goes to /qtddtot/ or /sqt/. PC assembly to >>>/g/.
1. Do your own homework. Re-read all documentation/datasheets related to your components/circuits, and do an honest web search, before asking.
2. Pics > 1000 words. Post schematic/picture/sketch/9001.5 hours in MS Paint with all part numbers/values/etc. when asking for help. Focus/lighting counts.
3. Read posts fully. Solve more problems than you create.

>I'm new to electronics, where to get started?
It is an art/science of applying principles to requirements. Find problem, learn principles, design and verify solution, build, test, post results, repeat.

>Project ideas:
http://adafruit.com
http://instructables.com/tag/type-id/category-technology/
http://makezine.com/category/electronics/

>Principles (by increasing skill level):
Mims III, Getting Started in Electronics
Platt, Make: Electronics
Geier, How to Diagnose & Fix Everything Electronic
Kybett & Boysen, All New Electronics Self-Teaching Guide
Scherz & Monk, Practical Electronics for Inventors
Horowitz and Hill, The Art of Electronics

>Design/verification tools:
LTSpice
falstad.com/circuit/circuitjs.html
NI Multisim
CircuitLab
iCircuit for Macs
KiCAD (pcb layout software, v5+ recommended)

>Components/equipment:
Mouser, Digi-Key, Arrow, Newark, LCSC (global)
RS Components (Europe)
eBay/AliExpress sellers, especially good for component assortments/sample kits (caveat emptor)
Your local independent retail electronics distributors
ladyada.net/library/procure/hobbyist.html

>Related YouTube channels:
mjlorton
paceworldwide
jkgamm041
eevblog
EcProjects
greatscottlab
AfroTechMods
Photonvids
sdgelectronics
TheSignalPathBlog
BigClive

>Li+/LiPo batteries
Read this exemplary resource first: https://www.robotshop.com/media/files/pdf/hyperion-g5-50c-3s-1100mah-lipo-battery-User-Guide.pdf
>I have junk, what do?
Take it to the recycler.

62 replies omitted. Click Reply to view.
>> No.1518176

>>1518150
what happens if you don't ground the enclosure?

>> No.1518192

>>1518172
So adding a second buck converter doesn't affect the range anymore than just one buck converter did. Adding rpi, produced same results if I didn't have the second buck converter. Which means you have to practically put id card right up to the reader and push on the enclosure a little bit.

So, to eliminate the buck converters and minimise RFI, it seems I can try to use a arduino nano (on pin 30 it can handle up to 20v it seems) and then add esp8266 to the arduino nano so I can still achieve wifi capabilities.

But I can't help but feel that I will still get RFI as if I have buck converters..

>> No.1518224

Hey guys I was wondering, is it possible to use one power switch to operate two power sources that power two different devices, and turn them both on?

>> No.1518248

>>1518224
yes. DPDT or DPST switch.

>> No.1518256

>>1518248
oh thanks anon, just curious two different power sources will have different voltage (one is 5v the other is 12v) it wont interfere with those two?



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1517624 No.1517624 [Reply] [Original] [archived.moe]

How do I fix these speakers without disassembling?

>> No.1517631
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1517631

A thread died for this.



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1517555 No.1517555 [Reply] [Original] [archived.moe]

What is the best soldering iron? What wattage is best for simple through hole PCB soldering? Is it worth paying extra for the Hakko digital ones?

I just need to assemble a set of crossovers for a set of speakers and also my current soldering iron is just completely screwed up.

16 replies omitted. Click Reply to view.
>> No.1517648
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1517648

>>1517594
This is how I desolder

Anyway the Hakkos are only like $100. That’s not too much. I’m still trying to decide whether to get that or drop about the same amount of money on one of the decently rated Chinesium ones with a hot air station.

>> No.1517652

>>1517566
flux is a double edged sword, they can get under sot-23 packages, notably mosfets and cause shorting

>> No.1517750

>>1517555
I use a 40w for anything under 1.5mm/2mm wire.

I've soldered PCBs with it, components, its fine.

If I need to do chunkier stuff, I bust out the 100w but thats very rare to do.

My 40w cost me about £10 from Maplin when it was closing, last one lasted me 5+years.

>> No.1517930

>>1517555
If you have the money on hand, just buy a good Hakko (or Weller, but not an el cheapo shit one) and be done with it. It's the cost of doing business, and cheap irons are only cheap if your time is worth nothing.

>> No.1518261
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1518261

>>1517555
>What is the best soldering iron?
depends...



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1517527 No.1517527 [Reply] [Original] [archived.moe]

How can I fix this so that I can put my nice white towels on it and not get rust stains?

I'll sand it down, but because it's in the bathroom it'll get rusty. so how can I coat it on the cheap so it doesn't get rusty?

I know it's a hard ask but if I could get a chrome finish aswel....

7 replies omitted. Click Reply to view.
>> No.1517668

sand it, paint it with your chrome paint thrn put some type if clear coat warter protection on it.

>> No.1517850

>>1517527

why not just BUY a cheap towel holder and mount it to the wall somewhere instead of hanging them on the rusty sink support

>> No.1517890

>>1517527
Holy shit, my parents had these tiles decades ago and it would constantly piss me off that the little bird chick in the tile design wasn't always upright.

>> No.1517896

>>1517890
> bird chick
I called them cloud chickens and also raged about their angle. Out of interest where are you? Im ausfag who grew up in a late 60's built house.

>> No.1517899

>>1517896
UK, also grew up in a late 60's house.
Two autists obsessed with childhood wall tiles meet up on a Chinese Drawing discussion forum, what are the odds?



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1517461 No.1517461 [Reply] [Original] [archived.moe]

I am designing a shed and am trying to pick interior finishes. Aesthetically I would prefer a painted drywall finish, but I am not entirely sure what all of my options are.

I will be spraying the walls with sparks occasionally, pic related. Can drywall handle this? My biggest concern is starting a fire, I know that sheetrock provides some fire rating but I am not knowledgeable on it.

What wall and ceiling finishes would work good for an area that will get splattered with welding and grinding sparks?

>> No.1517467
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1517467

>>1517461

>> No.1517475

>>1517461
Unless you're an inch from the wall there won't be enough heat to start a fire. I blast sparks onto my clothes all the time and even from 5-10 inches out I feel warmth, but nothing approaching heat, nor have I had anything combust. >>1517467 is the most bulletproof solution though.

>> No.1517489

>>1517461
>sheetrock provides some fire rating but I am not knowledgeable on it.
There's always google, ya know.

>> No.1517492

>>1517489
5/8" sheetrock is called "fire code" sheetrock. Thats what my area's building codes called for in my garage.

>> No.1517600

>>1517461
>shed

so outside and un-conditioned...drywall is not great

just use osb



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