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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!

what would be the fastest way to extinguish the fire around someone who was trying to self-immolate?

i've seen two recent cases on the news and it got me wondering.

assuming they use gasoline, would a simple blanket be the easiest way?
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>>835266
napalm guns
>>
Throw them in a pool
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>>834924
I use to be a fire extinguisher tech. that dry chem shit IS NOT water soluble.

I'll skip class K and class D extinguishers, CO2 probably best for dumbasses, Halon if not indoors (human candles already breathing in shit tiny bit more won't be the finished), water extinguisher wouldn't do much, foam probably would work but not much better than water on candle folk.
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>>835289
Thank you for your opinion, but I'll not take it over an MSDS.
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>>835258
The air absolutely does not stay at the same temperature, or you could stick your finger in the flame and nothing would happen.

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I'm wondering if the good folk of /diy/ have any tips on how to repel spiders. Does anyone have experience keeping these things away from you home?
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Friendly reminder that wherever you are, you will always be in a 6-feet range from a spider.
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My barn and workshop have spiders everywhere. They don't bother me, and I don't bother them.
Sometimes I have to show them who's boss, but they are quick learners. A good leaf blower puts them in their place if they cross the line.
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>>835177
hope so, those little fuckers bring good luck!
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http://i.imgur.com/CnwOxfD.gif

Just flail wildly.
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>>833734
I picked up my welding electrode yestereday and noticed there was a spiderbro on it. Every time I tried to shake him off, he suspended himself from the electrode with a strand of silk, dropped about a half foot, and then climbed back up. No matter how hard I whipped it, he held on.

I also got an up-close look. I don't know what type it was, but it was sort of translucent and really beautiful. I can't believe so many pansies hate these marvelous creatures.

>Thread #5 or 6 or something
Hello, /diy/pshits. I do these a couple times a year or so, and they seem to be semi useful/popular. I've worked in paint, the service desk, and have a pretty good idea about most of the shit that is in the store.

>favorite question asked this week:
What thickness of drop cloth do you think would work best for a bootleg slip n slide?
>dumbest question asked this week:
How does a fan work? Does it blow air from both sides at once?
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>>835302
>Also the chants
i fucking loathe those. had an ASM (asst store manager, home depot looooooooooves acronyms) who would never do the chant if he was the only one doing the meeting because he told us he thought it was demeaning. I liked that guy.
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>>835302
>>835304
We have never done any chants at our meetings. I didn't even know they existed.
>>
why the fuck doesnt menards sell dewalt tools in the store?
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>>835306
you don't have the GIMME AN H GIMME AN O bullshit?

lucky you. fortunately, i hardly ever work mornings, so i am rarely sucked into those
>>
Another Home Depot associate here, I work in the garden department if anyone has any questions. Garden also covers pesticides, herbicides, cleaning chemicals, grills, mowers and other power tools for yard stuff.

One word of advice: if you come in looking for a mower/trimmer part, KNOW WHAT MACHINE YOU HAVE. The number of people expecting me to find a tiny, specific part without a model number or even the brand name is ridiculous. I can find what they need sometimes anyway, but holy hell it's annoying.

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Old Thread >>811538

>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

Comment too long. Click here to view the full text.
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>>834983
But you need some good supports generator. I think, it is very hard to code.

By the way, I am going to choose LittleRp kit. They have tilting upgrade for their printer, that might be useful for vat coating issue.
Maybe I just need to replace all those PLA-printed parts to CNC-milled metal parts, and change standard vat to something better.
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>>835051
I won't have a support generator. I'll have to add them to the model myself. Of course I always have the option to just use an existing slicer with support generation if I realy need it.

>Maybe I just need to replace all those PLA-printed parts to CNC-milled metal parts
Sounds like a good idea to me. Try it out and if you feel the PLA parts cause problems upgrade them.
>>
>>828295

Around a decade ago I read in wired magazine that you could get 30$ 3D printers from China.
>>
I'm going to get a da Vinci 1 off of Newegg (or best buy price match idk) and put repetier on it.

I don't think anyone can beat the $350 with it being pre-built and a pretty large build area. Is there a different printer I should be looking at?
>>
>>835284
The reason the da vinci is so cheap is because the machine uses expensive chipped filament cartridges. So it won't accept any other brand filament that may be better, cheaper, and more plentiful. This is how they'll be making most of their money back off of people. For comparison I can buy a 2.2lb spool of ABS for $18-21, or sometimes even cheaper. Whereas a mere 1.3lb filament cartridge for Da Vinci costs around $27-28, with pricing ultimately depending on the whim of the company since the average consumer can't look elsewhere. I guess if you don't plan on printing big pieces, or very often, the price might not be too much of an issue.

Also you could probably try to hack the machine or cartridges to get it to accept outside filament. In any case at that price point you get what you pay for. The Da Vinci is going to be just as prone to failure as any other printers, and they try to lock you into their own crappy proprietary software (though I see you already plan on using repetier). Spending a little more on a kit or pre-built with much more open hardware/software options could be more cost effective in the long run. Though again, it really depends on your long term plans for your printer.

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I've been searching for a hobby lathe for a while and I've spent the last two weeks missing out on the best deals by literally hours. First saw a 7x10 mini lathe go for $75 (called 45 minutes too late), then a Craftsman for $80 (a few hours late), then an unidentified Chinese lathe for $200, and finally an Atlas 618 for $250 (ad was up for less than a day).

Anyway, shortly after missing out on the Atlas, someone offered to sell me the Craftsman pictured, the same model as the one that I saw sold for $80, but apparently in better condition and with a motor, which the other one lacked. This person emailed me so I'm not at as much a risk of missing out on it, however, I'm not quite sold. He wants $200 and I'd have to drive over an hour to get it. What do you guys think? Are these old Craftsman lathes worth anything? They definitely look cheaper than the Atlas with die-cast gears and such but I've also seen pictures of restored ones so they can't be that bad. Should I make an offer or wait on it?
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btw, related to the lathe matter, can anyone recommend any good tabletop mills for under 1500?
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>>835238
The Logan I looked at definitely fit the "worn" and "poorly painted" categories, although it did have proper cast iron legs.

The South Bend I'm going to look at looks to be in much better condition but it doesn't have any tooling or quick change gears.

A 9'' South Bend seems to be around the largest lathe I would be able to move.
>>
>>835267
It would take weeks, maybe months, not years. Even then some stuff wouldn't even be effected. A lot of our stuff is shielded and a lot more of out stuff doesn't even have electronics in it. People get all weirded out by bullshit like EMPs and solar flairs but its way overblown. We'd lose a bunch of communications satellites and there would be intermittent interruptions in other stuff but your lights would still work, you car would still start and the grocery store would still have milk. You've just be out of luck if you wanted to make an international call, using wi-fi or your cell phone.
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>>835210
sorry im new, hope i didnt upset ya...

not really hahahahahah

by "high quality vintage machinery", do you mean 50yr old worn out scrap metal which has to be completely rebuilt before its useable?
and a starting hobbyist would not likely be able to hold tolerance on a shaft with a clapped out old atlas or SBL

>>835264
>2015
>not having a generator big enough to run the lathe and mill at the same time
what are you even doing?

>>835238
>south bend parts support

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>>834860
>They are good lathes and you should be happy with it, as long as its not worn out.
>as long as its not worn out
>not worn out
>YFW it's at least sixty five fucking years old...

alternate opinion: do you want to make stuff or do you want to lurk flea markets?

there is NOTHING MAGICAL about a 50+ year old, crude, worn-out machine from a company that no longer exists.
This is like telling someone that their first car should be a 1950 model, because they are so awesome. But they're not,,,,, parts for most are difficult to come by and you won't ever find one in good condition for a low price. They were nothing special when they were new, and they look even worse by modern standards.

if you want to make stuff RIGHT NOW, I would say to give your money to a modern company selling one of the many China- or Taiwan-made machines and a truck will deliver it to the end of your driveway, brand new and complete, in ~2 weeks. And then you can start making stuff.

It is true that the China machines are usually not perfect, there are tests you can do with gauges and gauge blocks to show that--(you can even use cheapo China-made gauges and blocks to show this)--but the china benchtop lathes/mills cost $1000-$1500 and a perfect machine that size would cost you $25K+. And NONE of those ancient museum pieces would be in perfect condition either.


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

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Hey guys, honestly not sure where to ask this, but I thought I could get some helpful information from you all. I do design work, and i'm wanting to start up a small business to sell initially the gym stringer singlets, but eventually (if all goes well) extend the range of products. Honestly mostly for learning experience. I have local printers, I can set up the website and everything myself. But I was wondering where and how I go about purchasing wholesale products like this that I can then get my designs printed on, branded, and resell, or do I need to actually create the singlet myself?(and if so, some diy help on how you would go about that) Preferably a high quality material too. Have looked into alibaba, but i've never purchased off the website and the quality of those are worrying.
Pic related: the type of singlet I would initially be looking to purchase/make

tl;dr- Where to buy wholesale singlets

Okay I tried /g/ and they were useless. >pic heavily related regarding one response

I want to build a water-cooled laptop. I know that it's inefficient, absurd, and no one makes them for a reason. But I want to make one for fun. So here's my actual question..

What's an old, preferably cheap (sub 500 bucks) laptop I can use to put a water cooling system in? I'm going to be using materials similar to the ones this guy used

>link to "aquapad" (http://www.overclock.net/t/1509357/laptop-mod-ibm-aquapad-internaly-water-cooled-laptop#post_22756659)

>link to other cool water-cooled laptop prototype (https://www.youtube.com/watch?v=pz4a1RukOzA)

So, I'm looking for an old laptop with extra hard drive slots and a cd drive so I can maximize space for the radiator and pump. Any suggestions?

>Currently thinking about using a Thinkpad W520, the one some fanboy got butthurt about in pic
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You can buy silicone rubberish thermal conductive compound these days. Dip copper tubes in it, let it cure (to insure non-conductivity). Then place the tubes inside the notebook chassis as dense as you can. Then pour leftover compound over it. Meanwhile you make it waterproof. Sort of. If you replace HDD with SSD and so on.
>>
>>835057
Also more ideas: i think, it could be possible to find centrifugal pump that will fit the DVD bay. Some HP 8760w' are huge inside, many things can go into them.
As the heasink you may try getting cheap old-socket 1U server heatsinks, solder them together, mill tracks for water tubes, solder them too. Use this block as back display cover.
>>
>>834040
I actually saw a vid of a project where some engineering students had made a liquid cooled laptop with the idea that the cooling fan module was located in the CD tray sled, (the cd tray had been sacrificed so it din't have internal CD station) the idea was that the sled would slide out and reveal a fan and a very slim heat-exchange grid wich was connected to the pump and the CPU head, it was pretty cool in terms of idea and temperature.

can't find the link to it though...
>>
God I thought people water cooling their raspberry pis and other SBCs was bad enough.


Anyway, lets think. Why try to jam everything inside. Have you thought about expanding the botton or the laptop a little bit. Make a bottom shell for what ever laptop you are planing to use. This will give you more room to work with.

Next would be figuring out if you want to buy a small watercooling system or build your own. On top of that figure out how you are going to power it.
>>
Retarded. You know why? Because you want to BUY one to modify. If you already had an old laptop, I would say why not, but this is just bullshit

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Finished building my first big boy forge today. I did my first welding today on the angle iron that connects to the the forge body. My welds look like shit, but it seems to hold. Overall I think it turned out pretty nice. Unfortunately it's too late to do blacksmithing today.

Anyone else got some recently completed projects they'd like to share?
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>>831971
how much wood did you buy and how much did it cost?
>>
>>833057
I think it was six 2x4's that could fit in my car, and they were $2.75 a piece. So—not too expensive in my opinion. I don't think I actually used all of them either.

Are you needing to build one?
>>
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>>833140
ya im going to build the base for this anvil
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>>834428
Whats wrong with the stump?
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>>834972
uneven and it rots

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My brother recently got an air compressor free from a neighbor who was moving. The guy used it semi-frequently, it runs, safety features work, etc.. My question is how long should they last? The date stamped on it is 1998, and we don't know how well it was taken care of (the guy was kind of a dolt), but the thing looks like it was drained sometimes (by the PLIER MARKS on the plug). I took the plug out and a bit of gray shit came out with some moisture. When it dried it was like clay, and a magnet picked it up. Can't get a good look inside.. Worth using it or prob too old/corroded? I'd like to keep my limbs.
pic related - like that one
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>>834751
I like the hammer idea. Tank empty of course...
>>
>>834795
I have a buddy that has an air compressor, got another one with a motor that was ruined in a flood. He put the 2 tanks together. It runs longer when it does run, but stays off longer when using the air.
>>
>>828863
Just use it til it quits
>>
>>834802
>>834938

I tried as planned: compressor -> T connector going to airbrush and coke bottle. It does work, I don't know how much autonomy I gained with that system, my regulator is fucked, I'll test and post final results when I get it.
Will it be better if instead of a T connector i used " in line " connections ? ( compressor->bottle->regulator->airbrush ?
>>
>>834937
silly person, the tank doesnt dent when its pressurized

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This is an old johnson qd16 outboard motor, how does the condition of the cylinder look? Can I use wd40 on the head gasket? The gasket seems to be made of a brass sheet sandwiched between rubber.

What should I do to it without spending too much money?
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>>835285
Why would you use WD-40 on it? Are you trying to displace water? Why'd you open it up to begin with?
>>
cylinders look ok to me, but im not a marine mechanic, i mostly do cars
fix the broken bolt
clean the mating surfaces
new head gasket
seal gasket with thin layer of black rtv
re-assemble and re-torque


what do you mean by
>Can I use wd40 on the head gasket?
don't reuse the old gasket
>>
>>835285
bore looks fine, water jacket looks excellent, was this a freshwater motor?. you didn't need to take the head off at all.

rubber part of the gasket looks pretty fucked, check what a replacement costs on the boats.net part searcher before you try to reuse it.

broken bolt will come out easy if you file the stub flat and centerpunch before you start drilling you can end up with just a spring of bolt threads left and then peel it out with pliers, no need for a helicoil repair.
>>
>>835285
Its no good. I'll take it off your hands though..
>>
>>835294
Just cleaning it up, bought it and wasn't sure if it worked so I opened it up. I don't have the special pressurized gas can/lines or a fuel pump to mod it.

>>835296
Yes most likely freshwater only.

>>835297
If you're in toronto I'll trade you for a smaller engine.

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/diy

I plan on going on a long motorcycle trip and I could use some extra power for stuff like charging cellphones, electric airbed pump etc.

The output of the generator on the bike is barely enough to support its own lights and the additional lights of the trailer I will put behind it. For safety and legal reasons the lights will always be turned on. I dont want to end up push starting it on my holiday because I'm drawing so much power it fails to charge the motorcycle battery.

I have an old but still very functional car battery which I would like to use for power when I'm camping somewhere. I figured I put the car battery in the trailer and a solarpanel on top to charge it.

Can I simply hook up a solar panel to the car battery?
Something like this:
http://www.banggood.com/10W-Solar-Panel-For-12V-Battery-Charging-Polycrystalline-Silicon-p-954221.html

Or will the panel get fried, battery possibly overcharged or some other trouble?
6 replies omitted. Click here to view.
>>
switch to LED lights and that will reduce the load on the alternator
it will be costlier (if you want the bulbs to last more than a few days) but more "elegant"
>>
>>834434
This. Instead of finding more power, use the existing power better.
>>
>>834434
>>834573

I already am. The trailer will have LED lights and the only other place to save power is the tail light (10W). I cant change the headlight for LED because its not going to give me enough light. Cockpit lights etc is all LED already.
I considered xenon because I can find more efficient bulbs for those but once again a too big investment. in 30 mins I'll pick up the 46W panel for 10 bucks. Its a brand new one some dude near me has a whole stack of them.
>>
>>834708

Just picked it up, works really nice. I figured maybe there is a way to 'slow charge' the car battery? Like in such a way it leaves enough for the rest of the bike. That way I can still hook up the car battery to the motorcycle and save some weight of the panel or simply use it for something else (peltier micro fridge thing). That was basically my original idea but I couldnt find a proper charger. All (car) battery chargers seem to work on normal power (230v around here) and not on the 12v system that runs it.
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>>834125
Can you elaborate, 0.22 $/W is the best price I've ever seen for such a low wattage panel.

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Hey/diy/ the deck at my new place has a bunch of these stupid little posts sticking up about an inch and a half.

I'm worried about my mother-in-law tripping on them and want to saw them off flush.

What kind of sealant or treatment would I need to give the exposed timber? We're in Queensland, so I guess termites could be a thing...
2 replies omitted. Click here to view.
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>>835268
This. Just paint them hi-viz orange and hope for the best.
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>>835022
Kill your mother-in-law. it's the only real solution.

Next!
>>
put in a new flat deck on top of the deck
>>
Place potted plants.
>>
>>835283
I did just this at my moms new house last year. Built some wood pot stands and screwed them into the deck.

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>gutting house from 1930s
>tons of newspaper insulation in walls
>homeowner sees it freaks out saying its asbestos
>explain that its newspaper and asbestos was almost never used to insulate walls
>calls guy to test it anyway
>tell him its newspaper
>gives me a huge speech about how we cant be sure and have to test it
>tests it
>completely ignores pipes and duct work that actually are wrapped in asbestos
>negative
>wow anon I should have listened to you and saved $500
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>>835215
Oh, small but important detail : she's 24
>>
>>835216
is she single/hot?
>>
>>834997
are you me?

>no you're not since I quit blacksmithing 2 years ago and went to a watchmaking school

but still, I know EXACTLY how you feel
>>
>>835216
how can somebody be so retarded

literally how did she survive
>>
>>835217
Always the important questions

How do you improve iphone 4 cell reception? any portable solutions?

I found some obscure "add a wire to the bumper" method on the internets but I am wondering if there are any truths in it, or if anyone know anything about adding antennas to an iphone 4

hard mode: how feasible is it to have a big antenna inside the backpack and wire it to the phone to get more signal?

semi-related: if I want to get a new smart phone, which one has the best reception?

just exploring ideas, thanks diy.
>>
the bb q10 is the only smartphone able to maintain a voice connrction in my flat. iphone 4s,5,6, galaxy 4, nokia e6 and e72 all work only right at a window or on the balcony.
>>
>>835272
Here is a start, how to get to it.
https://www.ifixit.com/Guide/iPhone+4+Cellular+Antenna+Replacement/4359

Maybe you can solder a cable to it or find an antenna that can plug into the tiny ass port for the antenna cable.


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