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File: diy.jpg (657 KB, 800x600)
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Welcome to /diy/, a place to:

Post and discuss /diy/ projects, ask questions regarding /diy/ topics and exchange ideas and techniques.

Please keep in mind:
- This is a SFW board. No fleshlights or other sex toys.
- No weapons. That goes to /k/ - Weapons. The workmanship and techniques involved in creating objects which could be used as weapons or the portion of a weapons project that involves them (e.g., forging steel for a blade, machining for gunsmithing, what epoxy can I use to fix my bow) may be discussed in /diy/, but discussing weapon-specific techniques/designs or the actual use of weapons is disallowed. Things such as fixed blade knives or axes are considered tools, things such as swords, guns or explosives are considered weapons.
- No drugs or drug paraphernalia (See Global Rule 1). If you want to discuss something that could involve such things (e.g., carving a tobacco pipe from wood) that's fine, but make sure it's /diy/ related and doesn't involve drugs or it will result in deletion/ban.

Helpful links:
https://sites.google.com/site/diyelmo/
http://www.engineeringtoolbox.com/
>>
Some friendly suggestions for posting:
- First ask Google, then ask /diy/. Your question will probably be better received if you do so.
- List available resources (tools, materials, budget, time, etc.)
- Try to use pictures and explain the goal, if possible
- Be patient, this is a slow board; your thread will be around for days.
- Share your results! /diy/ loves to see problems solved and projects completed!

File: Schematic.png (21 KB, 1021x574)
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I built it, but I can't seem to figure out how it works.
I assume it is from the voltage drop of LED 1 + LED 2 being +.6v and -.6v that makes it appear as a short closed circuit (no resistance).

When I feed it 10 volts on the VCC, Everything works. All four LED's light up, and so does the switched LED. Neat.

When I voltage starve it, LED 4 and LED 2 come on, BUT LED 1 DOES NOT!. But the switched LED still comes on.
Increasing the voltage causes LED 1 and LED 3 to come on.

I can cut out LED 3, and the circuit will still work. LED 1 will not come on. But 2 and 4 will.

LED's 1 to 4 are just diodes, but I wanted a visual representation to help figure why it was working the way it was working.

Can any anons help me figure this out?
I'll keep studying and report back if I get it.
4 replies omitted. Click here to view.
>>
I simulated it in:
http://www.falstad.com/circuit/

Here is the source:


$ 1 0.000005 5.023272298708818 51 5 43
d 176 192 176 272 1 0.805904783
d 176 272 176 336 1 0.805904783
d 272 192 272 272 1 0.805904783
d 272 272 272 336 1 0.805904783
d 368 192 368 256 1 0.805904783
r 368 256 368 304 0 100
v 336 112 272 112 0 0 40 5 0 0 0.5
v 272 368 192 368 0 0 40 5 0 0 0.5

Comment too long. Click here to view the full text.
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>>852443
Holy ****. Mind blown! This is why LED 1 and LED 3 didn't light up at lower voltages. And why LED 3 wasn't needed.
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>>852437
>I would assume .6v to .7v each
Nope. 2V for red, 3.7 for blue, everything else is in between.
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>>852443
And here it is simplified.

$ 1 0.000005 5.023272298708818 46 5 43
d 192 288 192 352 1 0.805904783
d 240 112 192 112 1 0.805904783
d 192 112 192 176 1 0.805904783
r 192 176 192 224 0 100
v 336 112 272 112 0 0 40 10 0 0 0.5
v 192 224 192 288 0 0 40 5 0 0 0.5
s 336 112 416 112 0 0 false
w 272 112 240 112 0
w 192 352 416 336 0
r 416 336 416 304 0 100
w 416 304 416 112 0

Comment too long. Click here to view the full text.
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>>852449
Here is the hocus pokus, No current flowing, and now it works the way it does in theory. Neat.


$ 1 0.000005 11.086722712598132 66 5 43
d 208 160 208 240 1 0.805904783
d 208 240 208 304 1 0.805904783
d 304 160 304 240 1 0.805904783
d 304 240 304 304 1 0.805904783
d 400 160 400 224 1 0.805904783
r 400 224 400 272 0 100
v 368 80 304 80 0 0 40 5 0 0 0.5
v 304 336 224 336 0 0 40 5 0 0 0.5
s 368 80 448 80 0 0 false
w 304 80 304 160 0

Comment too long. Click here to view the full text.

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Anyone into building box mods?
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>>851251
Nice mouth fedora you fucking faggot
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>>852334
I suggest you spend the $2 on a glass pipe and use it instead of breathing in crazy bullshit. Alternatively find your ass some sand and bust the lock on some glassblower's shed. Try to be out before he notices you're turned his furnace on.
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>>852339
>>852419

cool cheers m8
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>>852441
>glass
>from sand
>In a cold furnace
>Before he notices.
He might notice when it's only halfway to temperature and it's 10 in the morning.
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>>852447
All I'm saying is stop smoking like a 14 year old. At least take a jenga block and drill two holes in it. You can even chuck the whole thing in a lathe and shape it if it's shit to you.

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Hi /diy/, how do I make soap?

The main thing I want to know is how to make lye...
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>>852002
Start off by reading the archive.

https://archive.moe/diy/search/subject/soap/
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>>852016
ashes of wood chips makes sodium carbonate (soda ash) not lye (sodium hydroxide)
Either of these alkali will make soap
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>>852002
(sigh) to make lye, pass water through ashes. Collect and evaporate water.

To acquire saltpeter, do the same thing but with guano (bat shit).

For either, the best method I've found is to collect your dry material in a bucket. Fill the bucket with water to just above the level of your (formerly) dry material, and let it soak for a day or two. Drain it into a large shallow container placed in the sun to evaporate. Harvest when dry. Wear gloves.
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>>852002

>The main thing I want to know is how to make lye...

got a body to dispose of?
>>
>>852077

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Hello all,

I am looking to make a pottery wheel and was wondering if you had any ideas on where to scavenge a variable speed AC drive? Preferably cheap or free?

Thanks for the help.
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>>852283
Potter again. One thing you have to consider is how messy throwing is. Anything that can get dirty will get completely bathed in large amounts of thick clay slip mud filled with sand and grit, corrosive alkaline salts, small ferrous particles, and will cake and dry like plaster. The fewer crucial moving parts exposed to this environment the better. Consider this in your design.
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>>852283
I took electronics in high school but some shit's clearly changed. What exactly is a mosfet and what does it do? I know it has something to do with a transistor but the name is so non-descriptive I can't tell what the function is. Is it a transformer of some kind?
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>>852348
>>
>>852413
Okay
So what exactly does it DO
The article was not entirely helpful. Is it an on/off control gate for higher voltages than whatever switching it is operating at? It never outright said it.
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>>852417
Yes.

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All glory to the Robertson screw.

I might be an amerifag, but R2 is my screw of choice.
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>>852381
Locally, these screws used to be used for VHS rental tapes to help against stealing the actual tape out of the casing. Apparently that used to be a thing.
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>>852174
At which point you just slam a T6 in there and call it a day.
>>
12 point inside bolts are the fucking worst. They round so easily that you might as well just bring an angle grinder with you instead of a socket.
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>>852194
>phillips and slot can get the fuck out robdrtson what what
all of my feels
>>
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>>852378
>Except when you don't want to over torque

I have become immensely interested and am at this point set on living off the grid. I know it's borderline monumental to undertake something like this, especially without lots of money to pay other people to do the hard work. My plan is to save up as much money as possible in the next few years while making the connections I might need to set it up but also gaining the skills I'll need to keep it going. That's the extent of any serious planning I've done, though.

I know I can't do it on my own. I know three people who would absolutely be in with me on this, but together we don't have many skills and even less money so far. I have a couple hardworking dreamers, a couple lazy dreamers, and a blank slate as far as skills and planning. I don't care what it takes or who's on board; I'll live in a tent in the woods for the rest of my life if I have to. It's about getting off on the right foot and setting us up not just to survive, but thrive.

Enough prefacing. I came to /diy/ because I'm done coming up with ideals and I'm ready to commit to real and realistic progress. What I want to establish before making any sizeable investment is a solid skillbase. That's the foundation for the mindset and lifestyle I'm aiming for. I have a rough list of skills that I feel should be honed before actually settling somewhere but I don't really know what's needed and what might be extraneous. I also have no idea about legalities, building codes, and whatnot.

I don't want this thread to just be me demanding input from you guys so I just made a general thread for this. If anybody can help me that would be awesome, but I really just want to hear anything more about these topics.
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>>852186

I believe there is only really one type of person who wants to live "off the grid," it's the freedom-oriented Voluntarist types who want to escape the tyranny of the government. People who believe in self-ownership and don't want to be forced into paying money into a system they don't like (in the form of taxes).

I think that is really what it comes down to. Farmer/Outdoorsman types who you would expect to want to live off on their own in the wilderness are typically are brainwashed sheep who willingly go along with the system.
>>
>>852007
>you cannot live entirely off the grid comfortably unless you want to spend all day working on maintaining a standard of living right out of the middle ages
You misunderstand me. My goal, or ideal I guess, is to live with like-minded friends and/or family and not need to rely on anybody outside systems. That doesn't mean I want to shun community, business, or modern technology. If fact, it is the opposite; I want to lead by example and implement those things into the way of life I see best for myself. Foremost that means living entirely "off the grid" with education, profit, and community-building my next priorities. I am not alone in this plan, although I'm prepared to be, and I'm not deluded, even though I'm prepared to discard my idealism if circumstances change.
>Your best bet is to form a Co-Op
I've looked into these and I see the potential in them but they are not what I am looking to accomplish. I would love joining an existing commune but that's more of a plan B for me. The skills I've learned will still be useful,

>>852012
I agree that cheap, prefabricated housing and raising my own food is my most economical option. >>852175's yurts seem like a promising idea. I don't think I will need a job, or at least anything like bus driving. I will be saving money and not going into debt to anybody else before I transition into making a life for myself.

>>852186
>Do you really want to shit in a bucket this badly?
Yes. I don't want to live somewhere that tells me I have to have an awkward porcelain seat in my house to suck my poop to some monstrous treatment plant then also sends me the bill for its "service." The Earth is perfectly capable of taking care of our waste if we choose to live naturally. I am perfectly fine with using an outhouse for the rest of my life.
>>
>>852186
>Do you really want to shit in a bucket this badly?
Lol I actually hate having to shit in a toilet. Toilets in general are claustrophobic just like the rest of city/suburban life. Give me space, privacy and freedumbs.
>>
>>848567
About agriculture you should consider reading bill mollison and about permaculture, there are lots of workcamps everywhere around the world where you can learn it for very cheap.

TL;DR check permaculture it's good to garden efficiently for very little effort.
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>>848572
I've never been able to un-joking call someone a philistine before.

You god damn philistine.

ITT: We rustle each other's jimmies
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>>851900
Fancy heat pump trying to warm the house by pumping heat from outside. Too cold a day to be using it?
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>>852228
>301ft long.
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>>850975
this is actually tremendously impressive if you ask me.

>jamal what are you doing? This will never work; the wires aren't even touching! Why do you need so much wire?
>trust me, boognish, I know what it is that I am doing.

And then a new wizard was born in africa.
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>>852211
>Is that nut red hot from heat?

Glow nuts are designed to light up when they're overloaded.
>>
>>849767
So... Is that a volvo retro-fitted to run on wood-gas, or just a volvo with upgraded heating?

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Ask a plumber for advice. I'm kinda bored. I'm not familiar with this board either so I'll assume i'll get loaded questions and condescending advice and that's okay too
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>>851445
>I'm not familiar with this board

OP probably left never to return when there were no replies after a half hour
>>
>>851485
>>851485
OP here, I'm not used to this board I usually hang out on faster boards so sorry for the late reply I thought my thread bombed so I abandoned it.

>So my question is: Should I decide to do this myself is using normal straight copper tubes a better idea for someone w/o plumbing experience then soft coiled copper?

Soft copper can be kind of tricky, Straight tubes are generally easier to work with if you're laying long lines that don't need to move much.

>Also how hard is it to work with coiled copper is it possible to cut an end then solder a fitting?

It solders together just like normal copper pipe.

>I know about pex but basically one of my roomates is preggers and we don't want to risk any chemical bullshit that I've heard about with new pex installations.

I would stick with the pex honestly. It's taking over the industry for a reason, as far as chemicals you may be better off just installing a water filter on your kitchen sink the solder and flux used for copper has chemicals and the city water supply has all kinds of chemicals in it anyways.
>>
>>851615
>>851615
Hello my man, I always wanted to be a combat engineer too but I pussed out when the window was open so I just hang out on /k/ all day.

I would search youtube and just watch people work to let it sink in. When you keep doing it the procedures and steps kinda burn themselves into your head. Just keep doing everything one step at a time until it all comes together. You can never ask your master too many questions and if he has trouble answering or is too impatient then you have a shitty teacher. If you can go look at the plumbing set up in your own home it really does help.
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>>851657
Yup.
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>>851988
Hey op, im the aussie dude. Cheers for the advice mate!

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Okay, /diy/ - My windsheild is cracked in my jeep - unfortunately the frame is so rusted that the glass company wont replace the windsheild until it's fixed.

I ordered a new windsheild frame, Painted it, now I have to take the old frame out. They are Torx bolts that my impact driver couldn't break free. I only have to take out 3 per hinge - and I managed to break both the front ones free with a 1/2" ratchet and reducer. I read on some jeep forums that using heart - like a hairdryer will work. Or should I just get a small propane torch and put the torx socket on a long extension, and heat the extension/torx up so the heat transfers to the bolt?

I didn't order extra bolts - so I would like to keep these if possible. The 2 bolts I was able to break free had loctite on them, so I'm assuming They all do.

I DO NOT want to strip these fuckers out!
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>>852361
>about to shower and give it a try
I know its 4chan but can you pervs keep that shit to yourself? Jesus.
>>
>>852365

I will think of you, 852365, when i scrub my balls in the shower <3
>>
>>852352
loctite is great. stop being a faggot. stick a pipe on the end of your ratchet. even the 10$ ones from the dollar store can take 2000nm of force before failure.

you only need heat if it has the red loctite on it. which I doubt anyone would do, use red loctite on trim.
>>
you need to use the propane torch on the hinge around the bolt you need to remove. you need to get it hot enough to melt the loctite, 200 ish degrees F. then while its still hot use your ratchet and torx bit to remove the bolts, be careful they are hot

also your going to loose the paint around the bolts because torch. clean the loctite off the bolts, and use new loctite when you put it back together

good luck anon
>>
>>852361
I purchased the same one from HF a couple years back anticipating a rusted rotor mount screw. Damn things works great. And cheap too.

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My gf begged me to post this question on diy and this is my first post ever. How would tools for females be altered or modified to accommodate females better. Some of the fellas claim I am pussy whipped, but Strongly Disagree.
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>>851409
purse-bag has a lot of strong points to it. You take it off as soon as you get to the NID and work out of it. Usually got a hook on it too to hang it off the strand.

I ended up not liking it and going back to a light belt because it would give me shoulder pain.
>>
>>849926
vibrations are alright
but too much friction
>>
>>851780
lol
>Hear about this shit before getting into trade think it's BS
>Become apprentice mechanic
>See women try to get free work with Bj's ect.
>Become jaded because of this & charge all women more because of their own stupidity.

I actually see this quite often and it's not as if i'm in the ghetto or some shit, in a pretty wealthy part of town.
>>
>>852095
women are very simple creatures. the frequency with which I have fucked hos who think sex should be like it is in pornos with all the OH OH OH OH OH OH OH constantly, what the fuck?
this is the only reason they do it. they think porn is real life.

also, a lot of guys get sucked into it. I knew a cabinet maker who rebuilt a womans whole kitchen for a few fucks. I told him she was a whore and he should gtfo and he did.

normies just arn't on the same level. they literally think that their wet hole is worth anymore than the prossie who will give it up for the cost of a shot.
>>
>>852095
It may sound unfair to charge women more for auto repairs, but you have to understand the whole picture.
Women spend their money on shoes. They don't like to pull out their wallets for anything else except dresses purses and cosmetics.

Attractive women don't have to pay for anything until they hit that age where their looks start to go, and it's hard for them to suddenly have to accept reality.
When a mechanic doubles his price to a woman, it's a compliment. He's making her feel better about herself. Imagine how she'd feel giving a BJ for $3 worth of antifreeze. The shame of degrading herself that low. When she sees a bill for $30 she runs her shoe algorithm, and figures she'd rather that $30 went to shoes, and $30 for a blowjob is above market value.
She leaves feeling like a high priced call girl, instead of a cheap whore. A satisfied customer, she'll come back again and again to get her antifreeze topped of, and never once think about fixing the leak.

So I've heard a lot about gold scrapping from electronics like computers, and refining it. Is it even worth the time? How much can you expect to make?
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>>851508
>Are these worth money
yes. you can get $3-5 per tower without getting your hands dirty.
>>
>>851514

Yes, they do, and no, you shouldn't be surprised, because why in the world would an electronics recycler go through the hassle of separating the usable materials out of circuit boards (a much more intensive process than any other recycling type) and then just ignore the steel case worth probably worth more than what they're able to recover out of the actual electronics?
>>
Plastic from computer cases, monitors and other electronics. after refining sell for $1 per pound
Aluminum, copper, and steel obviously sell for the daily metal price.
>>
>>851508
if you wanted to get gold out of them, scratch off some enamel covering the traces on the motherboard to see if they're gold, and if they still have processors, they will all have gold pins plated with gold, not a lot, but you should be able to get at least a few grams up to posibily a T.O. off of 500 of the suckers.
>>
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This

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I'm a worker at a haunted house. I've had an idea for a while that I thought would be cool but I need help figuring out how it'd work. I want to have it look like I am hanging. We are operating outside at night. We could use lighting to block out a harness but I want to be able to drop and run at the people. Any ideas?
>>
How about something like this?
http://www.sweeney-special-effects.com/special_effects_catalog.php?QR

Although I'd be careful if you're dropping from any significant height.
>>
Hey thank you very much! I wasn't sure how to word it for Google :)

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Previous thread:
>>843077

>I'm new to electronics, where do I get started?
There are several good books and YouTube channels that are commonly recommended for beginners and those wanting to learn more, many with advanced techniques. The best way to get involved in electronics is just to make stuff. Don't be afraid to get your hands dirty.

>Links to get started
http://pastebin.com/9UgLjyND
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>>852183
In the unlikely chance you can find documentation on the sensor, you can talk to it with a FPGA or fast microcontroller to get the data out.
>>
Quick question. I looked up how to make your own circuit board but I just can't be bothered, plus I dont have the tools necessary. What are some good websites or companies that allow you to send in a circuit design/schematic and have it made?
>>
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Here is mine
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>>851753
What's a good way for a college student to organize his workbench? I'm in a dorm but it's a suite style so I have some room to play with.
>>
>>852305
Impressive

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A question that's always confused me:
Where do wood workers/furniture makers get their wood from? Whenever I see guides on furniture making or things like "How to Make X" they always show a picture of someone with a giant thick piece of hardwood. My local woodworking shop only has hardwood in like 1x6 planks. Do you have to order it from a supplier in different sizes? And if you can't why not? Or do they usually just glue a bunch of planks like that together and then run them through a planer and jointer?


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