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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!

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I made the pair of tongs on the right tonight. And the pair on the left about a year ago. I also made the hammers and the handles. Post your nicest blacksmithing work and/or ask blacksmithing questions.
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Where do you guys set up your forges?
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>>867344

I usually Dig a tunnel 50-70m into the mountainside then i dig downward for 100m

i also tend to make it a spiral staircase down

after that i set up additional support beams and ventilations

after hitting a magma vein i redirect it to fuel the forge

do see that you should be extremly careful when daming up the magma and making the grates to forge

When all is done i drag the 200kg anvil down to the forge



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>>863020
I have the luck to be living near a small railroad company and a lumbermill. The lumbermillers use rails to keep wood of the ground. So I got a nice piece and ground an anvil out of it. It's dark outside now, but if anyone is interested, I will post pictures tomorrow
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>>863060
It doesn't matter if it gets blue before ht
>>
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I made this bottleopener, the bottom part is a leaf, I like it

Old Thread >>849849

>open source community
http://reprap.org/
http://forums.reprap.org/

>buyfag buyers guide
https://www.3dhubs.com/best-3d-printer-guide
Any number of Reprap kits out there

>basic 3d printing FAQs
https://opendesignengine.net/projects/vg3dp/wiki (lots of useful stufff)
http://www.reddit.com/r/3Dprinting/wiki/index

>what kind of filament do I want

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>>867394
>>867365
>>867362
>>867359
>>867347


Nevermind.

Snapped the shitty ABS printed belt tensioner.

top kek.

I guess I'm back to wanking as a hobby for a while.
>>
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>>867402
Forgot the image.
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>>867403
I'm not exactly sure what kind of stress that particular part is under since I don't have your printer, but was that part oriented properly when printed? That looks like an inevitable failure.

Also you might be able to Jerry rig something long enough to print a new one. I used hair pins once when a belt holder snapped.
>>
>>867411
>>867403
Or glue it. Super thick ABS juice works in a pinch.
>>
>>867411
It was oriented correctly.

It looks to me like a pure tensile failure of the printed part.

For context, this is the horizontal x axis tensioner for a prusa i3 variant.

The bearing for the belt is held in place by a m3 bolt that screws into the nut you see there.
A long m5 bolt runs through the end of the u shaped bit to tighten via nuts and a washer on the outside of the smooth rod bearing assembly.

No way I'm in a position to print a new one. I'll take the stl file to a shop (worst case).


>>867412
I may try drilling some holes, putting some steel rods through and securing with araldite. I've used araldite to stick motorcycle parts together again, should work.

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Not my pic but I have a similar issue. I can't get cum stains off a desk at home. It's made of mahogany wood.

I've tried a damp cloth with water and some alcohol wipes and neither worked.

What can I use to remove everything without damaging the wood desk?
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Be careful, this stuff can strip paint and will probably take off the varnish if left on for too long.

Spray it, leave it for like a minute and then wipe off.
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>>867027
>>
use a Mr. lean magic eraser or ur mom's toothbrush lol fgt
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>>867393
can't believe no one called out this b8 until now

pic related google image search. come on guys, you are smarter than this
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>>867027
In high school chemistry class we learned the rule that "Like dissolves like". You can remove dry nail polish with wet nail polish, you can remove glue with more glue.

TDLR you have to have a male orgy.

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Is your job going to be fully automated in 20 years, /diy/?
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>>867132
Gotta charge somewhere. Not everyone orbits their home. People travel.
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>>867230
no reason not too, make it adjustable and inflatable... adjust size larger mid use... honestly you'd probably be best served designing a unisex chassis then letting it pop in the appropriate adapters and adjust muscle and skin tone to the taste of whoever is using it... largest possible audience, most flexibility... plenty of upgrade options to keep up with changing taste... hell give it a dragon dildo option..
>>
>>867230
>>867113
>>867206
>>867404

realistically though how fun will it be to watch the moral outcry from the religious right if we actually came out with legitimate sex bots that could be made readily available... they'd argue it's prostitution... we'd argue it's just like buying (or renting I guess) a very fancy fleshlight (or dildo) .... outrage, crazy beliefs, and new precedents would be set...
>>
>currently doing a PhD in mathematics
I'm safe, at least for now.
Computers can calculate, not do maths.
Granted, if they gain new levels of abstraction I'm fucked, but that's not happening any time soon.
>>
>>867375
Cars and insurance cost a lot more in European countries. Basically, only rich people can afford them. I went to London awhile back and I was surprised by all the BMW, Audi, Mercedes cars etc. When I asked someone about it, they were very surprised that American families have multiple cars. When you are rich and pay a huge amount for insurance, you might as well get a fancy car as well. Tesla should do well there.

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Is there a way to get rid of the grime (calcium?) build up on my night guard?

I've tried lemon juice and Polident retainer cleaner, but they don't seem to work.
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>>865481
Wrong image
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>>863962
are you sure its not toothpaste buildup?
>>
dude its because its made with acrilic, by that i mean its as pores, so that yellowish coloring is just saliva and bactria buildup from what i see years of use, thats how we actually know that you use it by the smell (probably yours smells bad) and coloring. it was correct just to clean it with water because anything else like toothpaste and lemon and all that is abrasive to the acrilic and make it to wear out faster.
>>
>>865484
Thats as clean as itll get OP. Im the guy who suggested vinegar and water.

Now just brush it in the morning when you brush your teeth to maintain it. You can also get some of them denture tabs and soak it in that twice a week.

If you start fucking with it too much you're liable to damage it. You got a very large percentage of the grime off, you're golden.
>>
>>863951

Leave it in coke when its not in use. When you remove from coke, rinse it off. Coke fucking destroys everything.

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Hey /diy/, I'm custom painting an ice hockey goalie mask, and looking for tips.

I thought about having it professionally done, but I don't have an extra $500 laying around or 2 months to wait for shipping to Europe and back (next season starts in 2 weeks), and everywhere around me will be more expensive.

I don't need airbrush quality and I feel that I have enough experience spray painting and working with tape for small detail on other projects that I could make the final product look fairly well, given that the design isn't overly intricate and only involves 5 colors.

Any advice for spray painting on plastic? Anybody ever do something like this before and have any tips? I tried asking /sp/ but I forgot nobody there actually plays sports.

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hey guys, this is my first time posting in /diy/ but i figured id give this place a try

i just took over the bike assembler position at my job at walmart. i know its not great but i enjoy the new position

problem is, the last assembler got promoted and hes now a supervisor for 3 different departments and management never really gave him much time to train me.

ive got most of the basics down of bike assembly but some tips would be much appreciated in this thread

i have the most trouble adjusting gears and stuff as well as center pull brakes

any advice would be appreciated thanks in advance!

also, if i actually get replies ill ask questions for specific problems ive had with previous bikes

pic is probably my favorite bike to build and test ride
>>
Gears are pretty easy op. Two screws controlling how low, and how high it will go, and the nut can tighten or loosen the cable. If it's really out of whack, basic directions are:

Loosen the nut so the cable is loose. Let the derailleur go as low as it needs to, then adjust the L (low) screw so it can't move further than than the last gear.

Now pull the cable as tight as you can (without it moving the derailleur too much) and tighten the nut again.

For the H (high) screw, just change the gear lever as high as you can, make sure it's in the respective gear, and just adjust the screw until it's just lightly touching the derailleur.

Once you see how easy it is, it's quite simple.


Centre pull brakes on the other hands are a cunt. If the rim isn't true (wonky, move side to side), getting the brakes adjusted is impossible. There's plenty of guides out there, but the two tips I can give you are:

Plastic brake handles suck. They bend, I can never feel confident about braking power with them.


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>>867386
Me again. Just post any specific questions, and I can answer them when I'm not working etc. Google can help greatly, and there's a site called sheldonbrown.com or something similar, which has all the info ever, just a pain to navigate.
>>
http://www.sheldonbrown.com/
anything i could tell you came from this dude anyway
>>
>>867387
i have one specific bike thats been bugging me

its a hyper spinner 20 inch bmx bike with
center pull brakes

the brakes seemed off so when i went to adjust it kept going off to one side. the brakes were a bit tense so i tried to loosen the tension nut just a tad and the brake pad got stuck on the rim basically. adjust and adjust i couldnt get the damn thing stuck.

i made this thread on a whim so i dont have pics of the problem but when i say its stuck, both pads when you squeeze the brake lever just stick to the rim instead of bouncing back when you let go. the brake lever, however, does bounce back

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Arduino thread?
Arduino Thread.

>> ITT
>> post your projects
>> post your questions (if any)
>> post ideas


So I am working on making a laser tag system. As part of this, I am getting two arduinos to share a common refferance time. Basically, one of the boards is listening for a pin to go HIGH for ten milliseconds every second, and the other board has to know when to send its pulse so that the other board hears it. It was at this point that I realized "I dont know if, when one types <systemTime = millis();>, this starts the clock back at zero and starts timing or if it just continues timing from whereever it was at. It would be simple to test, but unfourtunatly, I do not have my arduino with me at the moment, and I wont be able to get it quickly, at least for a couple of days and dont want to delay writing the code for this...

>> tldr; how do I syncronize the boards so that the sender sends a pulse during a ten millisecond window that the reciever board is listening?

>>inb4 interrupts, I tried that and it clusterfucked me... still working on getting it to work, but im not too hopeful, even with another guy working on it with me...
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>>865489
>controlling the pump with a relay and various solenoid valves, has a clock module


Have you thought about using triacs instead? They're cheaper than relays
>>
So I just ordered this http://www.goldmine-elec-products.com/prodinfo.asp?number=G9321 to learn about and be able to differentiate between electronic parts. Also for a bit of fun. What you guys think?
>>
>>865311
>Ph.D. in PIC programming
>Ph.D.
>in programming
try again

Controls Engineer reporting in
If you want to pretend to have a doctorate, at least give it a believable name
>>
>>867390
I wouldn't expect to be able to use most of the parts in circuits since anything you design you'll probably have to order more parts.

But if you've never held a capacitor in your hand, it would be very beneficial to see these components in real life before you ever order more. For $7.95, I think it'll be a fun surprise
>>
>>867390
If it comes as shown in the image you are going to have a hell of a time sorting everything out.

Hope you aren't colorblind.

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I've got this Black and Decker cordless circular saw that I've never used before and I can't get the fucking blade screw out so I can install a blade.

It turns, and turns, and turns, and turns. Forever. Manual says to turn it counterclockwise to remove it but I've tried both ways, either way I hear a soft grinding sound from somewhere inside the saw and the screw turns but never backs out a millimeter.

I tried holding the washer still both by hand and with pliers while turning the screw and it's just impossible.

Google has told me to jam something in the blade while turning the screw and as you can see that's not an option since there's never been a blade in the damn thing.

What fucking retarded mistake am I making?
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>>
>>865428

Looks like YOU didn't read it.

Page 7, "attaching the blade (fig 9 & 10)":

To prevent spindle rotation engage the
protrusions of the spanner wench (8)
into the holes in the outer washer (10)
as shown in figure 9."
>>
I lock stuck blades from turning by clamping them firmly with a vise grip.

Reliable, safe, easy.
>>
>>864899
The other side of blade needs to be immobilized some way cram it with something like a crowbar.
>>
>>865428
lol

No really though, just get a new one that's not a B&D piece of shit.
>>
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>>865428 Are you serious? Did you look at the fucking OP image in the thread you just replied to?

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i'm looking for a long range WIFI antenna of some sort, and don't want to spend much.

the goal is to transmit over 3 city blocks from my apartment to university internet.

I have already purchased a ALFA AWUS036H wifi adapter to use. i tried a piece of tinfoil as a reflector with the included omnidirectional antenna but it was not enough. i was able to pick up a very weak signal rarely. never enough to establish a connection.


after some research, this looks like about the best guide:
https://www.ab9il.net/wlan-projects/wifi6.html

the 20 element is supposed to be a little more directional/more gain so i plan to build that one.

however, it does not go over how to connect the coax to the folded dipole. this youtube video does (link is to time where picture of dipole connection is showing):
https://youtu.be/6_ZeSj9vFF4?t=799
so, my question is this: is this as good as it gets without a parabolic reflector of some sort like a satellite dish? any general advice?
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>>867313
The big whip isn't just a long piece of wire, it's a series of stacked radiating lengths with a phasing coil/transmission line in between. You can google '2.4 ghz collinear antenna" for a DIY guide.

"Ground" has a few different meanings, this usage probably isn't what you're thinking about. There's earth ground, electrical ground, actual ground (like, the earth,) and a few others.
>>
>>867368
Thanks. It's nice to get advice from someone that knows what they're talking about.

I'll try that first
>>
>>867380
Interesting. I'll look into it. Thanks
>>
http://wireless.gumph.org/articles/homemadeomni.html

built that one a few years ago. still works great. it's omni, but mounted high enough and attached to the ALFA, it reaches far. also tried the cantenna with a bigger soup can, works too but not as far.
>>
>>867391
That's a good method, there's also a method to do it by replacing the braided shield with copper tube.

This method is even simpler: http://martybugs.net/wireless/collinear.cgi

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Is 18 too late to get into hobby electronics? Seems like everyone gets into it as a kid
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>>865879
Got into tube amp repair about 5 years ago. Now I do it six days a week professionally. I'm 36.

Fixing old tube gear is a great way to learn. Try to find some old fucked up stereos or guitar amps. Shits pretty simple and most amps are very similar. There's a ton of info online to get you started. Just be careful about high voltages. Assume anything you touch could kill you.
>>
>>866570
Gymnastics. Gotta bend and break young.
>>
>>865879
>tfw started studying ETech and informatics with 25
>tfw I didn't even *think* about being too late

Especially for electronics it shouldn't be much of a problem if you seriously start now.

I must admit I felt very much behind regarding programming. So many IT monkeys who started as young as six. While I tried to program hello world the first time in python and C++, the others were already code slinging with their fancy vim editors. Still graduated with a good average. In regards of electronics I probably was also more experienced at the end regarding practice. An ETech graduate is first of all a mathematician, that's how it is. the labs are rather simplistic.
>>
>>865879
i dabbled since i was a kid because my dad was an electrical engineer, but I didnt get very far past copying online diagrams of PNP transistor blinkers verbatim, then I took a long sabbath. it was about age 18 I learned anything past basic component names and uses, its defenately worth getting in to
>>
>>865879
>18
>too late for anything

get your dick wet before you think you are too old for something, kid

nothin' personal

gotta go

How does /diy/ feel about steampunk stuff?
i moved on from it but it was what started my path to diy by making a pair of goggles

<not mine but very similar
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>>
There's something about steampunk (and also doctor who) that in my opinion sucks the dignity out of life. I wish could audibilize it better, but there it is. I feel the same way about steampunk i do about fast food. I just think its disgusting, and if we're gonna be pigs with no standards then why dont we all just kill ourselves..
>>
>>866904
no you cant see through them. Its an infinity mirror (see through mirror glass in front with a row of LEDs behind, then finally a mirror at the back which causes the reflections to bounce back and forth into the distance) so you'd just see the back of the mirror if you put them on.
>>
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stripping paint is a bitch when you dont have paint stripper
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>>866824
1 by far.
>>
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>>867223
Brown leather or burgundy?

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I always wanted to raise chicken in my backyard, but I am too poor to effort a good and big chicken coop. I got some wood planks and stuff and I thought I could build my own chicken coop. Did anyone here build a coop or something similar ? Any plans, advice or even blue prints for a coop ? Any advice is welcome.
>>
How much background do you have in building stuff?

If you can figure out the rough dimensions of the hutch in your pic, you can probably improvise the rest. Having blueprints will not help if you can't measure and cut accurately, or make a rectangle that won't fall apart.

You might consider making the main box in your pic out of plywood, along with other large surfaces like the ramp. The rest can be knocked together with a miter saw. No need to use anything fancier than a but joint with glue and screws if you don't know how.

Luckily chickens don't care how nice their hutch looks. Just remember to file/sand any rough edges where they could hurt themselves.
>>
>>865408
honestly that coop is kinda hard to clean.

it looks nice and people sell them for tons, but its better to have 2 structures.

have 1 chicken wire cage- usually just some type of fencing wrapped around 2x4s or metal poles

have 1 nesting box- make a side with a hinge or removable for cleaning.
>>
Don't forget to burry chicken wire around the edges to keep animals from digging in and killing your chickens. Also chicken snakes are a real thing so be careful before you put your hands in there to grab those eggs.
>>
There are lots of "backyard chickens" websites with all the information OP will need.

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>be me a few years ago
>15 year old teenager working at true value
>we live in the middle of no where
>randomassrandoms with stupid problems come in for our help
>lady comes in with one of those spinny masterlocks that you play with for hours
>"AUGUST I FORGOT THE CODE TO MY LOCK CAN YOU CRACK IT AND TELL ME?"
>she seems to be a little deaf
>gives lock to my manager august
>"That'll be about 5$ for me to figure it out."
>I cut in
>you can just buy a new one for $4 to save us sometime ma'am
>"NAH I WANT THIS LOCK, ITS PROTECTED ME FOR YEARS!"
>"How did you get the lock off, if you dont know the combo?
>"i used the key, but I still want to know the combo, im sure you guys can youtube it and figure it out."
>alright we will do it...

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