Small Questions Thread

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Small Questions Thread Anonymous Fri Sep 26 20:53:20 2014 No.703204 [Reply] [Original]

Any Question that doesn't need its own thread.

>>	Anonymous Fri Sep 26 20:57:43 2014 No.703207 I've dumpster dove an old bike frame, it's flaking and some rust. If I clear coat it, is it rustproof, or if I strip the paint, what can I put on to make it rustproof?

>>	Anonymous Fri Sep 26 21:01:56 2014 No.703208 >>703207 First you have to get all the rust off of it. Any rust left on there will just make any coating you put on it look like shit and cause it to fail sooner. Paint will rust proof it once you've cleaned it up.

>>	Anonymous Fri Sep 26 21:06:13 2014 No.703209 What's a good volatile solvent for dissolving wax? I'm trying to make DIY waxoyl.

>>	Anonymous Fri Sep 26 21:09:06 2014 No.703211 >>703209 Try xylene

>>	Anonymous Sat Sep 27 06:49:54 2014 No.703330 >>703204 what is a basic equipment you need to /diy/ mainly to make your own little machines maybe at some point robots?

>>	Anonymous Sat Sep 27 07:23:56 2014 No.703334 >>703330 depends on what your machine or robot is made of really, is it self powered wind walker sort of thing or electronic swarm of drones or something else

>>	Anonymous Sat Sep 27 14:13:35 2014 No.703434 >>703330 All machine parts start on a lathe.

>>	Anonymous Sat Sep 27 14:43:04 2014 No.703441 how do I remove the bottom half of a screw from inside metal?

>>	Anonymous Sat Sep 27 14:56:07 2014 No.703451 What are some resources for learning woodworking? The sticky has a website but I was wondering if people knew of other sites or books that are helpful. I'm mostly looking for books.

>>	Anonymous Sat Sep 27 16:29:51 2014 No.703486 >>703451 the complete manual of woodworking by albert jackson is excellent for beginners

Ellie Sat Sep 27 17:12:58 2014 No.703495

>>703330
>what is a basic equipment you need to /diy/ mainly to make your own little machines maybe at some point robots?

If I had $20 to spend, I would buy an Xacto knife and a hot glue gun.

If I had $100 to spend, I'd buy the above and add on an inexpensive drill, soldering iron, and jig saw.

For materials I'd use wood and plexiglass (that's what they call the sheets of clear acrylic that hardware stores sell here.) What electronics to use depends on your application. I have a robot that uses an OOpic and one that uses an Arduino. Both are autonomous. The OOpic is nice in that you can plug servos directly onto it without making a separate cable. The Arduino is nice because it has string processing capabilities and you can't swing a dead cat on instructables without hitting sample code for it.

If you want something you control via radio, look at RC car and plane stuff. You can get cheap, lightweight, and abuse resistant brushed and brushless speed controllers, transmitters, and recievers for a pittance.

If you want to make mechanical bits, have a look at the woodengears.ca site. I've used his gear generator more than once and they work really well when made out of acrylic.

Also, check your local Goodwill/Thrift stores. I found a Wowwee Robosapien for $8 at mine. I gave him a RasPi brain transplant and now he's my best robot.

>>	Anonymous Sat Sep 27 18:30:32 2014 No.703523 File: 1.35 MB, 2448x3264, IMG_20140926_081142.jpg [View same] [iqdb] [saucenao] [google] I need to solder this wire back on. Never soldered anything before. How fucked am I?

Anonymous Sat Sep 27 18:46:12 2014 No.703530

>>703523
>How fucked am I?
It's not too bad. You'll need a soldering iron that gets hotter than the cheapies. Look for one that's at least 40 watts, 60 would be better, and a spool of Rosin Core Solder. Practice by joining lengths of lamp cord together before doing it on your car.

>>	Anonymous Sat Sep 27 18:50:39 2014 No.703531 >>703530 Thanks

Anonymous Sat Sep 27 20:14:34 2014 No.703554

>>703523
>I need to solder this wire back on. Never soldered anything before. How fucked am I?
important info: there is two kinds of solder, plumbing solder and electronics solder

plumbing solder uses a stronger acid flux, because that works better when soldering pipes. it is bad for electronic stuff tho

you need to get electronics flux-core solder, not plumbing flux-core solder. the solder that most hardware stores is plumbing solder, unless it says it isn't.

there is also plain solder that you must use additional flux with... but again: any flux that a typical hardware store has is probably for plumbing.

>>	Anonymous Sat Sep 27 20:22:18 2014 No.703557 >>703441 Be more descriptive. Did the head of the screw break off?

>>	Anonymous Sat Sep 27 22:04:52 2014 No.703606 why is online lumber so expensive compared to local yards? and I'm not talking about shipping them, they charge you by weight on top of the bf price cherry 4/4 local - $4/bf online - $7-10/bf mahogany (honduras) 4/4 local - $8/bf online - $15-20/bf

>>	Anonymous Sun Sep 28 05:24:31 2014 No.703717 >>703523 Is that a D21?

>>	Anonymous Sun Sep 28 05:31:47 2014 No.703720 >>703554 Also make sure the flux is the non-clean kind (does not need to be neutralized or washed off). Leaded solder is easier to work with than lead-free.

>>	Anonymous Sun Sep 28 06:10:49 2014 No.703730 Would aluminium 304 be suitable to use as a heatsink? >inb4 stainless steel. My engineer says it is a grade of aluminium

Anonymous Sun Sep 28 07:34:12 2014 No.703746
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I'm starting to do some metalwork as a small hobby. Can I use a hand-drill to make holes in a sheet of steel (less than 5mm thick) or do I really have to get an electic drill? (Pic related)

Anonymous Sun Sep 28 08:27:42 2014 No.703764

>>703730
>inb4 stainless steel. My engineer says it is a grade of aluminium

Never heard of 304 aluminum. Google comes up with nothing. Got a link that describes this alloy?
And if you have an engineer why don't you ask him or her whether it's suitable as a heatsink?
I have a hunch almost any alloy high in aluminum will make an excellent heat sink.

And why do so many /diy/ users just randomly use >greentext? Like, when not quoting anything.

>>	Anonymous Sun Sep 28 08:33:08 2014 No.703766 >>703764 Yeah I couldn't find anything except for that he said it was extremely uncommonly used. Going to see him tomorrow, just wondering if anyone here had an input. I'll post back when I find some more info about it. >why not

Anonymous Sun Sep 28 08:39:16 2014 No.703768

>>703746
Depends on the steel. But if we can assume you're using run of the mill mild steel, and using at least HSS bits, then yes you can manually drill it.
But it'll be a huge pain in the ass and unless you have some special attachment to manual drilling, don't bother.

Ideally get a drill press.

>>	Anonymous Sun Sep 28 09:11:45 2014 No.703789 >>703766 Where do you live? Maybe it's some national designator. The answer to your question depends on your idea of "suitable". It might not be the best possible heat sink material, but most likely it's still decent.

>>	Anonymous Sun Sep 28 09:12:54 2014 No.703791 >>703764 >And why do so many /diy/ users just randomly use >greentext? /b/raindamage.

Anonymous Sun Sep 28 09:15:50 2014 No.703794

>>703789
Australia

I know all aluminium is fairly good as a heatsink. It will be a force cooled sink anyway so I guess it doesn't really bother me which I use

Just wondering because I have never heard of it either, but he seemed to believe that it is avaiable just hardly used because it has very poor strength. But it will be housed so strength isn't really an issue.

>>	Anonymous Sun Sep 28 10:26:24 2014 No.703811 >>703768 Thanks for the honest answer! If by "pain in the ass" you mean hours drilling holes by hand, then buying a hand drill would be a waste. A push drill is quite a commiment though. But hey, you have to start somewhere.

Anonymous Sun Sep 28 12:21:06 2014 No.703838

>>703730
>Would aluminium 304 be suitable to use as a heatsink?
what's better is to use copper. depends on if you need to machine it or cut it with hand tools or whatever.

>>703746
>'m starting to do some metalwork as a small hobby. Can I use a hand-drill to make holes in a sheet of steel (less than 5mm thick) or do I really have to get an electic drill? (Pic related)
it will take all day, and you will ruin the drill bit you use, every hole you make.... when drilling any metal thicker than furnace ductwork, you really nee to use a drill press because if the drill bit wobbles the cutting edges will get dulled very quickly. also (when drilling thick steel by hand) the bits tend to snag and break as they exit the far side of the metal.

also if you are drilling in steel, either buy name-brand high-speed-steel drill bits from a machine tool supply place, or buy cobalt-steel bits from a local hardware store.
the high-speed-steel bits that normal hardware stores sell are all shit, they are way too soft to work well drilling in harder metals.

>>	Anonymous Sun Sep 28 15:33:10 2014 No.703893 >>703557 yeah, the screw is also really tiny, so my screw remover can't get it

>>	Anonymous Sun Sep 28 17:26:51 2014 No.703941 >>703893 >, the screw is also really tiny, so my screw remover can't get it Popular mechanics had a DIY edm machine a few decades ago. Google can help you find it. Budget to repair?

Anonymous Sun Sep 28 18:44:46 2014 No.703968

I just bought some exotic wood and need to cut thin sheets of it for inlay/veneer. It is lacewood, about 3 inches wide. I have a cheap bandsaw and its cheap stock blade that makes all kinda of jagged scratches in everything. Can anyone recommend a blade for this that will make a nice clean cut. I don't know enough about bandsaws to know if it should be small/big teeth, skinny/wide band, etc.

>>	Anonymous Sun Sep 28 20:55:01 2014 No.704053 >>703968 >>>/woodwhisperer/wish-you-veneer

>>	Anonymous Sun Sep 28 21:00:50 2014 No.704056 When you're working with wood, what do you do to prevent/account for size discrepancies after you've made your cuts, as the wood expands and contracts?

Anonymous Sun Sep 28 21:08:35 2014 No.704060

>>704056
wood expands across the grain, so you don't glue that if you don't have to (let panels float). if its a table top, you either make a slot for the screw to go through, or they sell brackets that allow for expansion

you really only have to worry about it with very large boards, 2" wide rails don't expand much

also, let the wood sit in the environment its going to live in for a few days prior to cutting. if you can get a dehumidifier in your shop to simulate an air conditioned house, it will help even if its not the same temperature

>>	Anonymous Sun Sep 28 22:06:28 2014 No.704094 File: 384 KB, 1724x1418, 6e6fb15d-9bf2-4764-b853-a0dc80f35.jpg [View same] [iqdb] [saucenao] [google] how can i desolder a heatsink? i tried everything, and italiano keeps getting harder everytime i try

>>	Anonymous Sun Sep 28 22:30:02 2014 No.704105 There's a few options: Use a heat gun or hot plate to melt all the solder at once or use a solder sucker or solder wick to get all the solder off every lead.

>>	Anonymous Sun Sep 28 22:53:22 2014 No.704114 >>704094 you need a higher powered soldering iron and flux

>>	Anonymous Mon Sep 29 00:29:44 2014 No.704152 What kind of snips should I use to cut straight lines in 22 AWG mild steel?

>>	Anonymous Mon Sep 29 01:11:03 2014 No.704171 >>703764 > be 33 > read post about "304 aluminum" > obviously about stainless steel > feelsgoodman.gif ...shall I continue?

>>	Anonymous Mon Sep 29 01:12:34 2014 No.704172 >>704152 yellow handles

Anonymous Mon Sep 29 01:14:53 2014 No.704173

>>704094
they didn't get it on that way. The soldered on the lugs and then attached the heatsink to them.

Do the reverse, remove the heatsink from the lugs first, then remove the lugs.

Else use a heat gun and heat the sink directly with the gun, and then try and desolder.

>>	Anonymous Mon Sep 29 01:18:03 2014 No.704176 >>704060 or use plywood, mdf, osb, trex or something with less or nearly nil expansion.

>>	Anonymous Mon Sep 29 01:19:48 2014 No.704177 >>703941 drill it out

Anonymous Mon Sep 29 02:10:06 2014 No.704196

I have a 32" wide table top made of 2x8 boards glued with Gorilla glue. I want to remove one of the boards so that it's 2 feet wide. Would it be better to run it through the table saw or is there something I can use to break the glue down and easily remove a board? It's not biscuited or anything.

Anonymous Wed Oct 1 01:14:18 2014 No.705100
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So I want to replace a old light outside my house door. It's currently hooked up and works however I want to replace it with a motion censored light. I want to move forward with this project but I honestly have no experience when it comes to electronics or replacing these types of things. Normally I'd have my farther do this sort of thing but he works alot of hours and just doesn't have time right now to do it.
I know when approching this sort of project you generally turn off the power to your house (or something along that level so you don't electrocute yourself). Can anyone give me any advice and tips? Is this generally a simple procedure?

Anonymous Wed Oct 1 01:53:50 2014 No.705112

>>705100
Its simple and pretty easy. Turn off the breaker that feeds that light. Pull the fixture off the wall and undo the wires. Wire new fixture to wires left in the wall. Mount new fixture to wall. Turn breaker back on. Done. If you have any problems, which you might, let us know. I cant go into every problem you might encounter because that would take all night and you might only run into one of two of them.

>>	Anonymous Wed Oct 1 03:30:12 2014 No.705138 >>705100 you can turn off the light switch, and switch light according to instructions with new light.

>>	Anonymous Wed Oct 1 03:49:07 2014 No.705146 File: 1.31 MB, 280x220, 1390511616135.gif [View same] [iqdb] [saucenao] [google] >>705138 >>705112 Thank you friends. I'll start looking into the matter and report back when I pick up all the stuff I need.

>>	Anonymous Wed Oct 1 04:34:33 2014 No.705159 >>705146 if the current light has more than two wires attached, or if there are several wires in the box, take a picture and post before trying to change. Both of those posts assume that standard practices were observed.

>>	Anonymous Wed Oct 1 04:49:10 2014 No.705162 >>705159 >>705138 >>705112 it will most likely be a 4-wire fitting. unless its like 100 years old. switched live, live, neutral and ground. just make sure you take note of which one is live and which is switched live.

>>	Anonymous Wed Oct 1 04:51:18 2014 No.705163 >>705162 since when does a fucking light have a neutral, you retarded fuckwit? Come now, explain, using diagrams and the NEC, you fucking retarded moron, when a light has a neutral.

Anonymous Wed Oct 1 06:01:04 2014 No.705170
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>>705163
you sure are a butthurt faggot. do you just daisychain live wires in the US?

or do you run light bulbs at 220v and just link your two live phases together and to hell with GFCI?

>>	Anonymous Wed Oct 1 06:01:43 2014 No.705171 How can I make a solar phone charger without using a phone car charger in it?

>>	Anonymous Wed Oct 1 06:02:10 2014 No.705172 File: 34 KB, 341x342, ceiling_rose.jpg [View same] [iqdb] [saucenao] [google] >>705163

>>	Anonymous Wed Oct 1 06:30:05 2014 No.705176 File: 3 KB, 126x93, 4m7vvom.jpg [View same] [iqdb] [saucenao] [google] >>705172 >mfw I'm the guy originally asking. Thanks for the responses for far btw.

>>	Anonymous Wed Oct 1 07:04:00 2014 No.705180 >>705163 >since when does a fucking light have a neutral, you retarded fuckwit? How embarrassing.

Anonymous Wed Oct 1 07:26:17 2014 No.705185

>>705176
although usually the switch doesnt have a ground. so there should be a two wire cable and a three wire cable. the three wire cable is the power cable that returns to the fuse box. the two wire cable has one lead that connects to the live wire(red usually) that runs all the way to the switch. the switch then uses the return live(black) which when the switch is on, allows current to flow to the light and connects to the switched live terminal.

also, many fittings use the chinese/old UK wiring color standard where brown =live = red and blue =neutral = black.

>>	Anonymous Wed Oct 1 07:27:03 2014 No.705186 >>703204 Are there any commonly available types of glue that will work to glue silicone to plastic? The head fell off a spatula and I'd like to fix it if I can do it for cheaper than replacing it.

Anonymous Wed Oct 1 07:31:24 2014 No.705188
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>>705176
of course this depends on the country.
USA uses the universal color for danger, red, as the neutral which is just plain silly. black or white can be the live wire in USA but you will need to post your regional location for specific color codes and a pic of your light socket still wired up but hanging off the wall for specific instructions

>>	Anonymous Wed Oct 1 07:39:29 2014 No.705190 Started up a podcast, what's the best way to get listeners and increase our popularity?

Anonymous Wed Oct 1 07:47:15 2014 No.705193

>>705190
go to /biz/ and ask them there about marketting. but by all means, feel free to spam every single board with the link. or be more stealthy and rickroll people with it by pretending that its some important news article on /pol/ or try to pretend its somehow relevant by samefagging up a thread about how based and important the podcast is and how the guy who runs it is some amazing guru/changed your life/is a pedophile/misogynist and say something controversial and spread rumours on MGTOW and tumblr boards for lulz and infighting leading to controversy and butthurt and hopefully mainstream media exposure

Anonymous Wed Oct 1 10:36:03 2014 No.705230
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>Building a PC
>All done, booted, no dvd drive
>plug in a cheap external one
>suddenly, burning smell from external dvd drive
>PANIC
>unplug the fucker, computer shuts itself down
>Motherboard is dead, no led light, no response whatsoever
Fuck.
I ordered a new motherboard and internal dvd drive.
What are the odds the other parts are fucked? I could only test the PSU which still worked.

Anonymous Fri Oct 3 08:59:07 2014 No.706003
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Quick diy, I need to know this!

Instead of using 12v as recommended I used 15 to make it work properly, but because of that I screwed up the transformer because the primary heats a lot, the question is, should I decrease or increase the number of turns of the primary?

I don't know if more or less resistance will avoid burning it in the future:

PD: I don't have access to a thicker wire. the one I have has 1.2 Ohms per meter.

>TL:DR if I have more voltage in a transformer should I decrease or increase the primary winding?

>>	Anonymous Fri Oct 3 09:03:35 2014 No.706004 >>706003 Try increasing the operating frequency first (smaller resistor/capacitor).

Anonymous Fri Oct 3 09:11:15 2014 No.706007

>>706004

I have a 100k variable resistor which I've been using to control the frequency, I increased it quite a lot to avoid saturation, and it was giving me good results until the transformer fried.

I'm going to wind a bigger transformer to avoid saturation and to be able to work with lower frequencies, but I don't know if the 8 Ohm primary will burn again.

>>	Anonymous Fri Oct 3 09:14:35 2014 No.706009 >>706007 It was also probably my fault because I've been using it for a minute or so and the transformer was getting quite hot.

>>	Anonymous Fri Oct 3 09:47:39 2014 No.706020 >>706009 I'll wind 8 Ohms again, and I'll be more cautious. I hope the increased inductance of the new transformer helps to reduce the heat in the primary.

Anonymous Fri Oct 3 10:49:13 2014 No.706040
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>>706020

No good results, I've reproduced the same coil configuration, now the secondary has 344 ohms, 40 more than before. But it still doesn't works, that means the problem is not the coil, the problem must be somewhere else, but where?

This morning I was making sparks with the first one and while doing so the sound of the transformer changed the tone, and now the sparks are very small, I thought it was the transformers fault, but after making a practically exact transformer and getting the same result I'm confused.

Capacitors are ok, they are rated 3kv, the capacitances were ok.
The diodes seem to be fine.

I don't know where the problem is, help please.

PD: Check this beauty, this is the second transformer I made, same results though.

Anonymous Fri Oct 3 12:28:31 2014 No.706085
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>>706040

Update: reducing the four stage to a three stage has increased the sparks length. This means the circuit has lost or is loosing some energy that wasn't losing before. Transformers don't seem to be the cause.

I'll change the transistor since I've already checked the capacitors, diodes and the 555, all of them are OK.

Frequency doesn't seems to be the problem.

>>	Anonymous Fri Oct 3 12:33:10 2014 No.706087 >>705186 This happened to me before. I used another broken spatula handle (but even a chunk of wood would work) and carved out to be slightly oversize to the slot in the silicone paddle.

Anonymous Fri Oct 3 18:06:38 2014 No.706210

Hi /diy/!

I have the mechanical ability of a ferret on speed, so I avoid doing much of anything myself. I figure I can use a measuring tape well enough and so helping my mom find a new electric stove-range-thing.

It is on an island thing, (more like an archipelago really) flanked by two cabinets, so whatever we get has to fit right. Unfortunately, measuring it it is a bit less than 30" wide by a little under 22" deep.

It seems, with a quick perusal, that they don't make 22" inch deep stove/ovens anymore. Is this true? If so how should I address it?

Any help would be appreciated. Thanks /diy/!

>>	Anonymous Fri Oct 3 19:50:01 2014 No.706243 >>703730 look up thermal conductivity of materials people like copper because conductive/cheap probably gold would be better (guess) but more expensive so tradeoff they give steel numbers because its an alloy aluminium is an element not a combination

Anonymous Fri Oct 3 20:08:23 2014 No.706266

>>706003
what is the transformer gain? about 40 or something?
power isn't really my thing but you must be close to the 400v rating of your capacitors.
they should be rated at least double whatever the peak voltage is. check the theory but i think the first one can be rated differently to the rest?

increasingthe input voltage could have burned one out possibly.

to reduce heating effects increase the number of turns = increased R = decreased I = less heat and larger voltage dropped.

Anonymous Fri Oct 3 21:16:45 2014 No.706294

>>706085

Yeah, common failure mode of capacitors, they tend to short.
Also a common failure mode of coils/transformers, the dielectric/insulation breaks down.

IMPORTANT NOTE: Often the breakdown will only manifest itself at the higher voltage only, so you can't test it with your standard ohmmeter or capacitance meter.

So, what do we do? Well, unfortunately, we make a new coil with better insulation, sometimes wrapping layers with ptfe film tape to prevent arcing. Obviously you have to space out the the windings a bit more as well on the same layer.

You could, in theory, build your own capacitors too, although most likely it's going to be a lot larger (like your coil with the layers of tape). I've never done that, I get my high voltage capacitors out of old CRTs and TVs. The guy that said to use double the expected voltage on the caps was a smart man.

>>	Anonymous Sat Oct 4 02:46:00 2014 No.706439 where do you guys prefer to buy your electronic components from?

>>	Anonymous Sat Oct 4 02:50:46 2014 No.706441 Is a raspberry pi a good choice for an arcade cabinet?

>>	Anonymous Sat Oct 4 03:28:56 2014 No.706451 >>706085 1) It could be current leakage from corona. The higher the voltage the greater the corona. 2) Leaky capacitors and diodes. You won't be able to check this with ordinary multimeters.

Anonymous Sat Oct 4 05:05:12 2014 No.706478

>>706294

I was previously using 400v capacitors, but they shorted, since then I bought 3kv ceramic ones, far more than what the tiny, transformer can output (400v in theory, but I think it must be around 500 (not peak voltage)).

With the 400v ones I could get sparks from a 9v batttery, but with the 3k ones I must use 15 volts to have significant sparks, this must be because of the larger area and energy leakage.

I measured the coil resistance and it's as always, no sign of fused coils or melted together.
Arching between the coils would be quite strange because the output should be around 500 volts, not enough to break two layers of enamel (I did a previous test and it was quite hard to pass through the enamel with around 10kvolts).

>>706451

The corona was quite small at it's max power, and it certainly was not a problem, now I don't have any corona at all if I use 4 stages, I can only use 3 stages, what tells me I'm losing energy somewhere.

This occurred all of a sudden, I was using it and then it became much less powerful, so I've discarded the normal problems of this kind of circuits.

The capacitors are rated 3kv as I said, they must be leaky, because I don't get as many efficiency as with the 400v plastic ones, but since the problem occurred that way I could discard normal leakage. I tested the capacitors and all had the same capacitance they came with, normally when a cap is shorted the capacitance goes down, even if it's just some tenths of nanofarads. But all had around ~10.3 - 10.4, nanos. The spark at the output of the transformer is around some hundredths of a millimeter, I doubt that can pass through a thick layer of ceramic.

I also measured all the diodes, all of them gave similar values, nothing strange, I'll be canging them to see if I can find some that is defective.

I have some spare diodes and capacitors, I'll try to change them at random to see if I can find the defective one, if there's any.

Anonymous Sat Oct 4 05:17:59 2014 No.706479

>>706478

Sorry for the long comment.

>>706266

As I said I upgraded the cheapy 400v ones for 3kv ceramic ones. Respect to the voltage I was using 15 volts all the time, if I used more I would destroy the 555 chip.

Increasing coils also increases frequency to avoid saturatiion, and I'm already using a larger one to drive my transformer, I'm not sure if the BD679 is fast enough.

>>706439

I get them from an electronic store near me, they usually have all what I need. I'm an impatient guy so I don't like to order from the Internet and wait for things to come. I have to pay more though.
I only use internet to buy large amounts of components.

>>706441

Definitely, the raspberry is fast enough, the most important thing is you have lots of emulators and documentation.
Also if you need more power it's very easy to overclock, just keep it cool. Check this out:

https://www.youtube.com/watch?v=pY647gCMcLk

Anonymous Sat Oct 4 09:33:46 2014 No.706531
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So I dun goofed doing a different /diy/ project and ended up fucking up one of my tiles in the living room. It happened to be a corner tile which was laying exposed and its chipped and very visible. I don't have a spare one as the tiles were set down some seven or so years ago. Anyone else been in a similar situation? Anyone know if there are places that sell individual tiles online perhaps?

>mfw after I realized that I dun fucked up

>>	Anonymous Sat Oct 4 10:18:00 2014 No.706542 File: 478 KB, 1568x1176, DSC07710.jpg [View same] [iqdb] [saucenao] [google] >>706531 >living room Welp, I fucked that part up. Here is the damage pictured.

>>	Anonymous Sat Oct 4 11:17:11 2014 No.706556 >>706531 And this is why you always should buy more tiles than the amount I need, now they're sitting in the basement, but If I crack one I don't have to search for them.

Anonymous Sat Oct 4 13:12:32 2014 No.706584
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Air Handler question:
I just renewed a full room of my house. There was an old red brick flue there and took oportunity to use it, digging holes for some Air Handler.
A friend said me, that sadly Air Hanlers are noisy. So I told him I would find some good quality computer fan to handle the job.
Do you think this will be strong enough to expel warm air from the room ?

The room is 4 squaremeters, well insulated, some computers in it, and with only 130W it's already going super warm. Hopefully summer is behind for the moment.

>>	Anonymous Sat Oct 4 13:38:33 2014 No.706591 >>703606 Because if you're forced to buy it online then you do not have the option to buy it local. The result is you get gouged on price.

>>	Anonymous Sat Oct 4 13:59:28 2014 No.706598 >>706584 no, computer fans will not be enough. a box fan maybe >dat diagram >negative and positive pressures everywhere protip: under the door isn't a great vent based on CFM of most air handlers

Anonymous Sat Oct 4 14:02:42 2014 No.706601

>>706591
>went to lumberyard for first time yesterday
>overwhelmed as fuck
>guy was talking gibberish about rough, S four S, rift, four four. I picked up a piece that was clearly a 1x6x8' oak and he told me, "thats 4 bored feet, will run you $25." wut?? I need 6 of those for the project I want to build (coffee table), for $150 I'll just go to ikea...

Anonymous Sat Oct 4 14:51:47 2014 No.706617

>>706601
Economies of scale brah. DIY is almost never cheaper if you are fighting against someone with good economies of scale. You might be able to make a better quality product, a more tailored product, or be able to fill a void of availability, but probably not beat them on costs. If your materials costs are about the same as theirs you can murder them on labor, marketing, overhead, etc but probably not on skills, tools or scale. So, if what you are trying to do doesn't require much in tools (or you've already go access to some), you only need to make a few and you already know what you are doing (or its super easy), yeah, you'll save money. Otherwise you might only break even or go in the hole.

>>	Anonymous Sat Oct 4 16:01:35 2014 No.706631 >>706479 Until I can solve this, can someone recommend me a good site where I can learn about transformer winding, until now I've been eyeballing the widths of the wires.

Anonymous Sun Oct 5 16:47:40 2014 No.706994

Can someone tell me if those dim lights are X-rays or argon ionization?

https://www.youtube.com/watch?v=gq4XRFuMacs

Sorry for the low quality, the autofocus with no light doesn't works too well... the light color is something like blueish-greenish, and the interesting thing is it is projected against the wall of the bulb.

The voltage input is quite high, and the vacuum chamber is a oven lightbulb, which I assume has a thicker glass and lower pressure.

>>	Anonymous Sun Oct 5 16:57:50 2014 No.707002 >>706994 https://www.youtube.com/watch?v=SE4m99PcEU8 This one has better quality, I added some light with the youtube enhancements. You can see how greenish dots appear in the surface of the bulb.

>>	Anonymous Sun Oct 5 17:08:12 2014 No.707005 What are some good resources for learning about tree houses? Building them, what materials to use, designs, etc? I've never built anything before but I want to try to build one at some point.

>>	Anonymous Mon Oct 6 07:52:06 2014 No.707255 >>706994 Bump? If I placed a fluorescent lighbulb near the source of X-rays it would lit up significantly, right?

None !2Code3TV3M Mon Oct 6 09:36:00 2014 No.707275

>>707255
x-rays might need its own thread since that's particularly specialist info, the average handyman wouldnt know
>>707005
any sort of cheap boarding will work, you just need to know how to construct a sturdy enough floor.
Picking out a tree is the important part.
it's pretty basic stuff really and just comes down to building supports around the branches. A tree house is not really something you can buy in a store and put up, because they always need to be custom built.

aside from that you might have a bylaws forbidding them in your area but if you're in the country dont worry about it.

Anonymous Mon Oct 6 15:54:31 2014 No.707393

>>707255

I placed a fluorescent lightbulb near the zone with the green glow and it lit up a bit.

>>707275

I don't want to mess with x-rays, when I get the answer I'll forget about it, maybe someone will notice it.

It would be cool to know I've generated x-rays.

Anonymous Mon Oct 6 18:17:46 2014 No.707442

>>703606
I usually buy my wood at home depot because I honestly didn't know where else to go. Found out about these things called "guilds" and joined a local one. Asked where to get lumber and was pointed at an actual, factual lumberyard.

I don't understand this pricing. I understand how to calculate board feet (bf), but I don't understand their logic.

If I pick out a 8' x 6" x 4/4 (4bf) it's $16, and extra $.50/bf ($18) to make it S4S, but if they pre-mill it, a 1x6 is $3/linearft (8' = $24). It's actually cheaper for me to go in there and ask them to mill something on the spot than to pick out stuff they've already milled down...

>>	Anonymous Mon Oct 6 23:58:48 2014 No.707581 >>707005 The black and decker complete guide to treehouses is available from a software piracy forum near you. (en.bookfi.org)

Anonymous Tue Oct 7 16:39:06 2014 No.707859

I was boiling pasta on my electric stove range and microwaving leftover smoked sausage. After like a minute there was a pop and the microwave turned off. I went to the circuit box and switched off the switch that said Kit. Then I switched it back on and turned on the microwave. It worked again.

The question is, is everything ok now, or was something damaged?

Anonymous Tue Oct 7 16:56:01 2014 No.707870
File: 474 KB, 1224x1632, DSC_0120.jpg [View same] [iqdb] [saucenao] [google]

What spongy/rubbery material can I use to conduct heat so my toner transfers come out nicely?

I don't have an iron so I use the glass stove at my kitchen, works fine but since both surfaces are flat and rigid there are some spots that don't always touch.

Pic related is my first toner transfer etch ever, laugh if you want, but I was just too lazy to print again when I realized the fail.

>>	Anonymous Tue Oct 7 17:09:47 2014 No.707879 crafty/thrifty anons wanted here: 4+4 chan >>>/poverty/

Anonymous Tue Oct 7 17:23:32 2014 No.707883

>>707870
>What spongy/rubbery material can I use to conduct heat so my toner transfers come out nicely?

You don't. I just stick a sheet of kitchen towel between the acetate and the iron. Turn the iron upto max. Turn any steam function off.

It does help if you have a glorious 230V iron and not a weedy 110V shirt warmer.

>>	Anonymous Tue Oct 7 17:29:45 2014 No.707889 >>707883 Thanks, I'll guess that'll work. I'm doing it, with the kitchen glass stove btw, I almost burn the paper so temperature is not a problem.

>>	Anonymous Tue Oct 7 17:33:37 2014 No.707892 >>707889 To be fair toner transfer is a bad method if you're trying to cover large blocks, like you have. Still, if you have any gaps (like you have), just color them in with a Sharpie. It works.

>>	Anonymous Tue Oct 7 17:43:00 2014 No.707894 My small question. Black light posters. What do I use for the black part, just regular black paint?

>>	Anonymous Tue Oct 7 22:02:13 2014 No.708039 File: 35 KB, 206x239, okay2.jpg [View same] [iqdb] [saucenao] [google] >>706542 >>706531 Anyone able to help?

Anonymous Tue Oct 7 22:36:18 2014 No.708054
File: 195 KB, 1239x860, P.jpg [View same] [iqdb] [saucenao] [google]

>>703204
Can i into PIC? what would be the first thing i would need(to learn, to have)? what interesting stuff can be done with these guise?
Is it a good introduction to microcontrollers? if not, what is?

Anonymous Tue Oct 7 22:44:44 2014 No.708058

>>708054
pic you need a programmer for it, learn c or assembly (just for the chip, don't go learn x86 assembly or anything, look at the chip datasheet for instructions) download mplab
some would say avr is better to begin with because you can program it with a homemade programmer with a couple of resistors. also compile your code with whatever you want.

>>	Anonymous Tue Oct 7 23:04:52 2014 No.708060 >>708039 Try superglue, filling underneath with polyurethane and then putting a threshold strip of wood to cover that edge and prevent future breaks?

>>	Anonymous Wed Oct 8 00:37:27 2014 No.708076 >>708054 Google "pic intro"... > what interesting stuff can be done with these guise? If you have to ask...

>>	Anonymous Wed Oct 8 05:45:09 2014 No.708158 What's the black coating used in Chemistry classrooms/labs on tables? I assume it does something useful.

>>	Anonymous Wed Oct 8 06:21:34 2014 No.708164 >>707892 That was just a test, I didn't had a PCB around so I used aluminum and etched it with HCl.

>>	Anonymous Wed Oct 8 06:25:32 2014 No.708167 >>707894 I didn't quite understood your question, black light is violet, if you want something to shine under it use fluorescent paint. If you don't want something to shine use just black paint, that's it.

Anonymous Wed Oct 8 09:32:50 2014 No.708190

>>707894

Black light is low intensity ultraviolet light which is invisible to the human eye. This is achieved by using a violet filter on a broad spectrum light source, allowing violet visible light, and the invisible UV light to pass. The pigments that glow under black light re-radiate light in the visible spectrum; this is called florescence. Most paint does not fluoresce. Purchase specific black light paint in the colors you want to fluoresce, and just test you regular paint for what it looks like under the violet filter.
.

Anonymous Wed Oct 8 10:00:56 2014 No.708200
File: 411 KB, 1024x768, 2391171412_87da015698_b.jpg [View same] [iqdb] [saucenao] [google]

Any way to isolate a button from a high voltage driver? I fear a spark hits the driver and flies through the circuit until reaching the button and my hand.

I thought about using optocouplers, but I think they break at 5Kv or less, a relay seems to be a better option, I tested it with 10kV with no leaks.

I don't want the thing to be beefy, I just want to switch a transistor with it.

>Pic unrelated, just a lure.

>>	Anonymous Wed Oct 8 10:04:15 2014 No.708202 >>708200 Thinking about it, I could make an optocoupler using a standard IR diode and a sensor instead of a chip, the spark gap would be huge.

>>	Anonymous Wed Oct 8 10:36:01 2014 No.708216 File: 1.57 MB, 3264x1840, IMAG0095[1].jpg [View same] [iqdb] [saucenao] [google] Is this asbestos? It certainly doesn't look like asbestos sheets but I'm worried it could be something else horrible home builders would put in a shitty house.

>>	Anonymous Wed Oct 8 11:55:28 2014 No.708234 >>708216 I don't think asbestos was used in carpet padding. When was this house built?

>>	Anonymous Wed Oct 8 12:43:29 2014 No.708253 >>708200 you could put a GDT (gass discharge tube) between the switch and ground.

Anonymous Wed Oct 8 12:46:50 2014 No.708256

>>708216
Don't ever breathe in anything dusty, good rule of thumb. You may not get asbestitis but you can still get all kinds of nasty shit.
I can't say yes or no to asbestos, but remember that the shit was considered a miracle mineral and stuck in fucking everything.

Anonymous Wed Oct 8 12:50:28 2014 No.708258
File: 4 KB, 200x200, opi150.jpg [View same] [iqdb] [saucenao] [google]

>>708202
Yes, you can do that or even connect the emitter and the sensor with a long optical fiber.
Not that you can't get ready-made high voltage optoisolators. Pic related can take 50kV.

That said, it would probably make more sense to redesign the circuit so that lesser optos would suffice.

>>	Anonymous Wed Oct 8 21:52:30 2014 No.708449 i want to make a Halloween costume for a party at a friends house but im pretty broke. anyone got any cool ideas? i was thinking carboard+tinfoil robot

>>	Anonymous Wed Oct 8 22:17:45 2014 No.708454 File: 62 KB, 500x360, costume-ideas.png [View same] [iqdb] [saucenao] [google] >>708449 Carboard boxes. possibilities are endless

>>	Anonymous Thu Oct 9 00:24:42 2014 No.708483 File: 287 KB, 768x1024, 2996651685_e3876152b9_o.jpg [View same] [iqdb] [saucenao] [google] >>708449

>>	Anonymous Thu Oct 9 01:30:32 2014 No.708506 Here's something that's been bothering me for a while....how do you be creative? I have this problem where I have the technical skills from school, but yet I SOMEHOW have no creativity whatsoever.

>>	Cart bike guy Thu Oct 9 02:22:11 2014 No.708515 >>708506 I get ideas when I'm stuck at work and really fucking bored. I just start daydreaming, "like wouldn't it be really cool if....". Force yourself to sit in in a park for several hours with no cell phone or anything, you'll think of something.

>>	Anonymous Thu Oct 9 05:44:48 2014 No.708543 I need to make a button on my mouse to constantly repeat (close and open it's circuit) whenever it's pressed in simplest way. If I throw crystal oscillator after the button will it work?

Anonymous Thu Oct 9 07:07:45 2014 No.708565

>>708506
In my experience my best ideas come from thinking how to do something and then developing the skills needed to do it. If you start with "Alright, I can do X. What can I make with this?" you're really limiting yourself.

Unless of course this is for profit, in which case stick with things you know will work that you are capable of doing.

Anonymous Thu Oct 9 07:27:38 2014 No.708570

>>705230
Depends. Did the motherboard die from a power surge from external dvd drive? If so, peripherals might be phucked too. But I would say that for now you should presume that it's only the motherboard, and identify if it was the dvd drive frying it, by connecting it to a machine you can afford killing.

In my experience, power surges can (but most often not) propagate throughout hardware components. Internal fault in one component rarely affects others.

Anonymous Thu Oct 9 07:35:27 2014 No.708573

>>708054
>>708058
This

- Get a USB programmer
- Learn the basics of the programming language (assembler and/or C)

Pro-tip: Most IC manufacturers provide free samples, hoping that their chip will be used in something that eventually gets mass produced. I managed to get Texas Instruments and some others to FedEx me stuff to Europaland for free because of this. I therefor have a neat stack of PIC16F628 and various other components.

Back to the programmer: Building it from a kit is a decent way of practicing your solder skills.

>>	Anonymous Thu Oct 9 07:56:02 2014 No.708578 File: 639 KB, 1632x1224, DSC_0130.jpg [View same] [iqdb] [saucenao] [google] >>708258 Done.

>>	Anonymous Thu Oct 9 10:34:41 2014 No.708623 >>708565 >In my experience my best ideas come from thinking how to do something and then developing the skills needed to do it. Can you elaborate on that or give an example? I'm having a really hard time wrapping my head around this

>>	Anonymous Thu Oct 9 11:10:39 2014 No.708633 >>708623 Creativity comes from a necesity. You have a necesity and try to satisfy it with the tools you have (technical, experience, etc..) Not the other way around, you don't say "hey i know how to do X, what now?"

Anonymous Thu Oct 9 11:39:27 2014 No.708643
File: 13 KB, 470x576, Dancing groot.png [View same] [iqdb] [saucenao] [google]

So I'm wanting to make one of those solar powered dancing plant things, except it's going to be a baby Groot from Guardians of the Galaxy. I have only one question; where would I get stuff to make the "dancing" arm and the eyelet? I was thinking that Knex might have some stuff the right size and purpose, but I can't find the right parts. Should I just drill a hole in some Knex and tap a pin in there?

>>	Anonymous Thu Oct 9 11:52:20 2014 No.708648 File: 10 KB, 200x200, initech.gif [View same] [iqdb] [saucenao] [google] Whats the best way to paste this logo onto a coffee mug? It doesn't need to last very long, but I need it to stay for a few parties.

>>	Anonymous Thu Oct 9 12:00:26 2014 No.708651 >>708648 >get white mug >print out logo >adhere to mug with packing tape.

Anonymous Thu Oct 9 12:43:37 2014 No.708670

>>706003

My question is related to this post's image, which is how do I understand those weird wire diagrams? I mean, is there a beginners book or something, I google and google and there are advanced courses and plenty of books for various levels of understanding. So, what is one book that seems to work well enough to where I'll understand these strange diagrams? At some point in the future I just know I'll run into these when I want to take on more advanced projects. Thank you in advance for anyone willing to help me out.

Anonymous Thu Oct 9 16:15:40 2014 No.708770
File: 3.42 MB, 2432x4320, 54529b94-e63e-44ab-838f-f69be380b.jpg [View same] [iqdb] [saucenao] [google]

Can anyone help tell me what type of wood this is? I found it lying around my school's woodshop and I decided to make my first project out of it. I'm just curious what it is so that I can do some stuff in the future with it, since it has really nice looking grain and colors.

Anonymous Thu Oct 9 16:20:47 2014 No.708771
File: 2.98 MB, 2432x4320, ae360a48-564f-424d-9537-c892a3fdb.jpg [View same] [iqdb] [saucenao] [google]

>>708770
Please take in mind that I know absolutely nothing about this kind of stuff. I'm interested in learning though. I noticed the wood has a different smell to it, a very light touch of sourness, but I'm not sure if that's because its been sitting out or not. I was told that it was relatively new and that it might be exotic. (I don't think so) Its also pretty soft and kind of fuzzy when its cut with the grain like this.

>>	Anonymous Thu Oct 9 16:22:18 2014 No.708772 File: 2.85 MB, 2432x4320, 980ee6d8-55bc-458f-851a-ba2f84c73.jpg [View same] [iqdb] [saucenao] [google] >>708770 and the last picture.

>>	Anonymous Thu Oct 9 16:27:06 2014 No.708774 File: 25 KB, 480x800, 1412886388383.jpg [View same] [iqdb] [saucenao] [google] how do I clear off mold or whatever this is?

>>	Anonymous Thu Oct 9 16:33:48 2014 No.708777 >>708770 leaning toward cherry, but could be red oak

>>	Anonymous Thu Oct 9 16:35:28 2014 No.708778 File: 813 KB, 2560x1536, 20141008_212914[1].jpg [View same] [iqdb] [saucenao] [google] what in the hell is this

>>	Anonymous Thu Oct 9 16:42:23 2014 No.708782 >>708777 Cherry is what a friend of mine said. He's a carpenter's son, so I assumed he knew what he was talking about, but I think Cherry's harder than what this is. It's rather soft and chips and tears quite a bit.

>>	Anonymous Thu Oct 9 17:10:38 2014 No.708792 File: 60 KB, 323x488, black light poster.jpg [View same] [iqdb] [saucenao] [google] >>708167 >>708190 Thanks, helped a lot I wasn't sure since some black light posters use velvet for the background. Just like this one

>>	Anonymous Thu Oct 9 17:16:04 2014 No.708794 >>708777 I say red oak especially if its tearing and chipping so much.

>>	Anonymous Thu Oct 9 17:17:39 2014 No.708795 >>708670 Most any electronics book will teach you schematic symbols. If you can't follow them or a flowchart fairly easily, a career in electronics is not for you

>>	Anonymous Thu Oct 9 17:30:48 2014 No.708799 >>708778 That would be a billhook, a long shafted one to be more precise. https://en.wikipedia.org/wiki/Billhook

Anonymous Thu Oct 9 17:54:55 2014 No.708809
File: 843 KB, 1826x1903, boxfan.jpg [View same] [iqdb] [saucenao] [google]

I have a 3d printer, I print in PLA, I have terrible sinuses so after 15 minutes of printing or so I get horrible sinus headaches. I am going to seal off part of my room wth plastic material like a car paint booth and run a box fan filter to an exhaust fan in a window.

I remember there used to be daily box fan air filter threads.
Did anyone come to a conclusion of what the best design was?

I figure the 3d printer fumes are much harder to filter out, so what kind of filter should I be looking for?

>>	Anonymous Thu Oct 9 18:04:52 2014 No.708816 >>708809 ...just get a mask. It's an air filter, for your face!

>>	Anonymous Thu Oct 9 19:37:44 2014 No.708853 >>703838 Thank you! Now I know exactly what to get on my next hardware trip.

>>	Anonymous Thu Oct 9 19:40:33 2014 No.708854 >>708809 I have a big plastic bin my 3d printer sits in with a hole cut in one side for a computer fan and a metal dryer tube leading to a window. It helps a lot. you could put a small air filter in the tube or in the box to filter it a little more.

>>	Anonymous Thu Oct 9 19:44:23 2014 No.708859 >>708816 And have him wear the mask whenever he's in his house? Fumes sit for awhile without proper filtration dude.

Anonymous Thu Oct 9 20:45:35 2014 No.708878

So I have a ceiling light on a dimmer switch.

A few days ago the light wouldnt come on. I replaced the bulb and it still wont come on.

I removed the dimmer, and tested the hard wires coming out of the wall.

I am only getting 60 volts

Is this ok or should I be getting 120v?
Is there like a short in the wall that is going to burn my house down?

>>	Anonymous Thu Oct 9 21:03:51 2014 No.708887 >>708878 nevermind, im dumb I have a bad dimmer

>>	Anonymous Fri Oct 10 00:06:44 2014 No.708952 I see threads making porches, shades, fences and houses, is there some super big ass book on how to build this shit I'm unaware of?

None !2Code3TV3M Fri Oct 10 11:14:04 2014 No.709141

>>708952
that would be your local building codes.

The rest is just basic construction principles, generally furniture is a bit more complicated than glorified sheets of wood and glorified boxes.
>>708809
the picture you posted was pretty much the best one due to cheap and easy construction, but it's meant for open rooms.
only problem is replacing the filters basically means rebuilding the filter box, not that it's very hard to do so, you'll just have a gunky looking fan after a while.

>>708774
elbow grease, scouring pad, and yes that is black mold.
>>708770
80% it's red oak, the fuzziness you mentioned is a little confusing to me though since I remember red oak being splintery bullshit to work with, but it could be softer due to age too, I've worked some 80 year dried planks of maple and they were, while dusty, much nicer to work with than other maple I'd worked with.
>>706531
>>706542

looks like the snap was because it wasn't properly supported, your best bet is to mend it carefully and resupporting underneath.

However this is a very common thing and most people wouldn't judge someone else for having minor cracks like that in a door frame, so the real problem is only if this is a place of the house where you kick off your winter boots and get water into the cracks.

>>706210
if she cooks mainly with steel, induction elements can come in similar sizes, and are actually a fair bit safer than traditional elements.
They're nice to cook on and if you spill on them, nothing bakes on like with a regular glass top.
Induction's might run your money, but if you're as bad as you say you are, it's cheaper than replacing a burnt down house after I tell you to hack hot plates apart to make a custom.
>>705171
having the components and being a genius.
Seriously, it's the easiest way.
>>704196
depending on how much glue was used, you might be able to get away with a good knife, but it IS gorilla glue after all so you might have to take me with a grain of salt on that, so saw.

Anonymous Fri Oct 10 20:59:48 2014 No.709365
File: 1.34 MB, 3072x1728, WP_20141010_16_27_03_Pro[1].jpg [View same] [iqdb] [saucenao] [google]

My wife and I bought our house around two years ago. When we first bought it, we didn't have a shower curtain that fit the size of the shower and thus we showered a few times without a curtain. We thought we made sure to wipe up any water that got on the walls / ground.

Fast forward, mold has been growing like in the picture attached, and usually I just wipe it away with white vinegar, but it's starting to damage the paint and the trim so I'm just going to replace it.

Any ideas on how to make sure it does not come back? We now have a proper shower curtain, but I'm weary that this will come back because of the dark spots in the grout.

Thanks in advance.

>>	Anonymous Fri Oct 10 21:14:09 2014 No.709371 >>709365 R U sure that's not coming from inside the wall. kinda looks like that from the pic. meaning there is a much larger problem hidden inside the wall

>>	Anonymous Fri Oct 10 21:19:55 2014 No.709373 >>709371 I was hoping not... Guess I'll have to have someone take a look. You know what type of person I should call? Plumber? Something else? Thanks.

>>	Anonymous Fri Oct 10 21:23:37 2014 No.709374 >>709371 >>709373 Also, if it was coming from inside the wall, but was like a leak that was easily taken care of, would I have to get some sort of mold specialist to come in and test the air or should it be ok? Thanks

Anonymous Fri Oct 10 21:24:30 2014 No.709375

>>709373
it looks like the seam between the shower tile wall and the tub isnt sealed.

put a towel on the edge of the tub (between the inside and outside curtains) while you shower to mop up any water that makes it around the curtain edge.

you want to dry that out with a fan and/or portable heater.

Anonymous Sat Oct 11 00:57:23 2014 No.709467

>>709365

If I were you and if I had money I would tear down the whole bathroom and have it checked for mold issues and then I would have the walls tiled.

I think that is the only correct way to build bathrooms and showers. To have the floors and walls fully tiled and put moisture isolation behind the tiles. And then not drill or break through. Also a good ventilation is important. If your house has a adjustable ventilation then put it to MAX when you are showering and to medium when you have laundry drying (if you don't have a dryer) to get rid of the moisture. Opening a window helps too if you don't have an adjustable ventilation.

Chlorine kills mold pretty well. I once lived in an apartment that had a similar looking shower. It had plastic wall carpet and walls and a plastic "stand" when you would go to stand while showering. And it had a shower curtain. The apartment building was build during 70's and had horrible mold problems. I call the janitors and they did some fixing but eventually I moved the fuck out because the place was a dump. There was ice inside my living room during winter.

Anonymous Sat Oct 11 01:05:42 2014 No.709469
File: 48 KB, 408x544, Valmis_kylppari.jpg [View same] [iqdb] [saucenao] [google]

>>709467

I'd like to add that this looks like a decent shower. It has moisture/water insulation behind the tiles and tiles on walls and floors. Also the floor is build in a way that all the water goes right in the floor drainage. Also because the bathroom is small there is a shower box. It is more hygienic than a shower curtain since shower curtains gather bacteria and your skin touches the curtain. Shower boxes are easier to maintain clean. This shower box doesn't have a floor either which is good since it doesn't need one. The water goes to the tiles and straight to floor drainage and like I said there is the insulation under the tiles. The plastic "stands" (the things you stand on when showering) are horrible because all the shirt goes under them. It is really hard to keep clean and usually there can be found god knows what. I once found a used tampon under one...

Anonymous Sat Oct 11 01:55:40 2014 No.709493

>>709467
>>709469
That sounds disgusting and horrifying. If I had the money I would probably tear down the bathroom and do something with it, but of course, if I had that money I probably would buy a new house...

The best I can do right now is I was going to replace the drywall and the trim, add the little water stoppers wing things to the tub and hope that we can keep it down.

I'm really hoping there's not damage behind it, but I imagine I'll see that when I'm replacing the drywall, and again, while I'd like to do a tear down and replace the room, this is just a starter home for us until we're able to afford a place more suitable for the family we want. (7 - 10 years down the road).

Thank you guys for your help, and I appreciate anymore insight.

Anonymous Sat Oct 11 06:56:26 2014 No.709556

I pulled some speakers out of my car when I put in the new ones
they're good speakers (infinity), and I'd like to turn them into bookshelf speakers
only problem is that they're 2-ohm, like most car speakers
would hooking them up to a 4/8ohm amp damage them at all?
also how would I go about building a box for them?

Anonymous Sat Oct 11 20:32:47 2014 No.709828

>>709493

When you tear the wall down post it here. If there is no visible mold or dampness behind the wall I think it should be fine. Right?

7-10 yaers is a long time to live in a house though so if there is something wrong there and you guys live there that long it might cause some level of health risks.

>>	Anonymous Sat Oct 11 22:17:06 2014 No.709859 >>709828 Yeah, and we just had our second child so we're a little weary of letting them be around anything that might damage their health. I'll definitely post it on here when I start the work. Thanks!

>>	Anonymous Sat Oct 11 23:46:25 2014 No.709873 What would be good wood to make a little cheap-but-decent speaker cabinet? not audiophile, just cheap bastard.

>>	Anonymous Sat Oct 11 23:51:26 2014 No.709874 >>709873 a box for a speaker or a thing to put speaker assemblies in? if it's just structural, plywood will do MDF if it's for a speaker box

Anonymous Sun Oct 12 09:39:02 2014 No.710013
File: 1.10 MB, 2560x1920, 20141011_145807.jpg [View same] [iqdb] [saucenao] [google]

I'm making a thing and to get the blueprints on the paper I found a super fine point sharpie and slowly (it was so fucking slow holy shit) traced over the blueprints I taped down to the wood until the ink bled through so I could see it on the paper, but it took me a full day of on/off tracing while watching TV or whatever, would it be wise to just clamp this piece of wood down to the other 1/8 inch thick piece of MDF I have and cut them both at the same time?

I have two semi cheap little clamps, one c clamp and an irwin quick grip, I'm worried that this wont be enough to keep the two pieces of wood from getting out of sync while I"m cutting them and fucking everything up.

My other plan would be to cut this one up and use the cut out pieces as the things I trace instead of spending a million years slowly going over and over and over every line until enough ink bleeds through that I can follow a line

>>	Anonymous Sun Oct 12 10:35:00 2014 No.710032 >>710013 I don't want to spam too much but I have work later today and I'd like to get as much work done while I'm at my uncles house so I can make use of his driveway while its available to me, so any input would be really appreciated

>>	Anonymous Sun Oct 12 11:21:35 2014 No.710048 Anyone can recommend a popular darlingtor transistor chip array that can handle a current of 1 amp? I also need a hall effect sensor, anyone will do the job as long as it is kinda popular.

>>	Anonymous Tue Oct 14 03:24:50 2014 No.710796 I'm making a laptop from a RPi and an old cigar box. I need to make the lid stay at a good angle when open instead of just falling all the way back. Any good solutions?

>>	Anonymous Tue Oct 14 04:40:12 2014 No.710834 File: 245 KB, 330x399, HighTechSolutionsPtyLtd.png [View same] [iqdb] [saucenao] [google] >>710796 ..a stick?

>>	Anonymous Wed Oct 15 04:18:16 2014 No.711268 >>710834 Well, that was my initial idea that or a string. But I was wondering if there was a more elegant way. Not many laptops are held up by sticks.

>>	Anonymous Wed Oct 15 04:23:49 2014 No.711269 >>711268 they use very stiff hinges. a pair is like 5$ on ebay.

Anonymous Wed Oct 15 04:42:04 2014 No.711273
File: 9 KB, 1026x780, PENETRATION.png [View same] [iqdb] [saucenao] [google]

>>711268
Yeah, i'ma retract that statement, the only words I brained last night were "RPi" and "cigar box". Thats a totally useless suggestion. String is good, but seeing as you want something better, and I was an ass, have this.

A lot of IRL laptop hinges are basically a threaded shaft attached to an anchor (connected to the laptop base), onto which a collar (connected to the lid) is placed. A big fuckoff spring is then placed on the shaft with washers at either end, and a locknut is used to compress the whole shebang together. Perhaps you can replicate this? A cigar box LCD will be significantly lighter than a laptop lid, which gets you off the hook for the insanely tensioned spring. Or maybe just buy the cheapest set of laptop hinges you can find?

Otherwise maybe pic related? A friction stop, made from a brass tube, a metal strip, and some silicon. Get some brass tube, cut it to length, and cut a strip of metal that will be small enough to slide into the tube (closer to the inner diameter of the tube, the better). Put a gnarly big blob of silicon onto the end of the strip and allow it to cure. Next using as sharp a blade as you can get your hands on (like, brand new boxcutter blade kinda sharp.. 'sup NSA) trim the silicon so it can be slid into the tube in such a manner that it takes a bit of force to move it back and forth. Tighter you can get this part the better.

Solder a washer to either end, loosely screw one end to the inside of the box and the other to the lid, enjoy your lid support. You'll need to calculate your tube and strip lengths so the silicon does not hit the end of the tube when the lid is closed, nor does it pull out of the tube when open (maybe build a physical stop to prevent the lid from being opened too far), but this should do the trick.

Anonymous Wed Oct 15 04:50:01 2014 No.711274

/r/

About a year or more ago there was an anon going by the handle 'Mech[something]'

He was building a complex mech arcade machine with multiple screens, heaps of buttons, toggles, jacks to 'reroute power in the game, pedals, joystcisk, speakers, the works.

I think he was getting into actually having the cabinet move to simulate the rocking of the mech or damage/collision that was occuring inside his homebrew game.

I would really like a link to an archive showing off all his stuff, and the completed project.

cheers in advance

Q: I was recently given a bike. The part where the frame meets the adjustable pole that holds the saddle has rusted together, meaning I cannot adjust the height of the saddle to where I'd like it. ANy tips on trying to fix this?

>>	Anonymous Wed Oct 15 04:50:35 2014 No.711275 >>711273 unless you can somehow loosten the nut, lappy hinges will be waaay too stiff, he'd prolly snap the lid opening and closing it.

Anonymous Wed Oct 15 04:58:19 2014 No.711276

>>711274
That would be BattlemechDood. Go search for him on the archives, i seem to recall him popping in for an update a few months ago.

A. Saturate that shit in some sort of penetrating lubricant, and muscle that shit loose. Start by twisting, if that does not work, remove the saddle and tap the post a few times with a hammer (put a chunk of wood or something over it so you don't accidentally deform/flare the end of the pole, stopping the saddle from slipping back on). When it budges, replace the saddle and use this as a handle to twist/pull the pole out.

Anonymous Wed Oct 15 12:50:27 2014 No.711405
File: 905 KB, 1000x1274, 1390665116967.jpg [View same] [iqdb] [saucenao] [google]

>>703204

New to Electronics Here. I am interested in beginning a career in Electronics. No real experience or training yet. Several different areas of interest: Process/machine control / Data acquisition. Robotics. Low voltage systems. Alternative power systems(solar / wind ).

Whats the best way to become prepared to enter one of these fields? Is a 2 year degree the minimum? Is a 4 year degree necessary? is it possible to get hired with no formal training?

>>	Anonymous Wed Oct 15 13:20:06 2014 No.711417 File: 2.69 MB, 4128x2322, 20141015_181038.jpg [View same] [iqdb] [saucenao] [google] Any electricians want to explain why this is considered 'poor' workmanship? Sorry for the poor quality drawing

>>	Anonymous Wed Oct 15 16:22:59 2014 No.711500 I've got a ceramic capacitor with 140471k written on it, am I correct in thinking that means 140471 pF with a 10 percent rating?

Anonymous Wed Oct 15 16:35:54 2014 No.711509

>>711500
Why would anyone use six digits of precision and then tell you that the last 5 digits were a joke?
If all that text is on a single line, with no spaces or other separators, I'd assume it's HP's or some other big company's stock code instead of the actual value.
If 471K is somehow separated, then it might be a 470pF 10% capacitor.

>>	Anonymous Wed Oct 15 16:37:19 2014 No.711510 How do I learn to read blueprints and learn machine shop and assembly skills for an entry level job?

>>	Anonymous Wed Oct 15 19:51:10 2014 No.711599 >>711509 Cheers mate, I did think it was weird to have that value. There is no gap in the number on the capacitor but 470 sounds more realistic than 1404471.

Anonymous Wed Oct 15 20:43:09 2014 No.711618

>>711405
I recommend to you before going to college and take some kind of engeneering course related to electronics, to take a technical electronic course. A technical course is usually a lot more focused on practice and how to get a job, which is what I guess that you want most at the moment. You can, obviously, start a degree in electronics after that.

>>	Anonymous Wed Oct 15 20:58:48 2014 No.711626 >>711618 >take a technical electronic course thanks for the feedback. Do you mean take a single college or tech school course? or some kind of condensed technician certification program?

Anonymous Wed Oct 15 21:41:23 2014 No.711637

>>711626
I meant more like a tech school course, but since I don't know a lot about these technician certification programs becauseI have never taken one or knew someone that did, I'd suggest to you to look on your region the tech schools that are there and certification programs that you can take.

>>	Anonymous Wed Oct 15 22:24:58 2014 No.711667 >>711637 ok thanks. i'll look into those options.

>>	Anonymous Sat Oct 18 01:04:47 2014 No.712613 File: 13 KB, 300x200, th.jpg [View same] [iqdb] [saucenao] [google] why are hindu beat garden

>>	Annonymous Sat Oct 18 11:44:54 2014 No.712793 >>711626 If it is a technical school make sure it is college certified. That way you can receive a degree as well.

Anonymous Sat Oct 18 16:08:53 2014 No.712883
File: 3.20 MB, 5312x2988, Broken headphones.jpg [View same] [iqdb] [saucenao] [google]

i have no clue where to ask this, so i figured i would do it here
these broke and i need to know what the best way to fix them would be, they still work, it just the plastic that came apart, i dont know what to do because the part is so small, keep in mind these are going to be put on and taken off regularly, so there will be a lot of moving with these
someone recommended loctite, but the only loctite i have is superglue

Anonymous Sat Oct 18 16:37:29 2014 No.712888

>>712883
Twist-tie or electrical tape would probably work best. I don't know where you can find them, but they make tiny nuts and bolts, probably related to clockwork. There's double-sided mounting tape, I've been using a larger surface but my headset is ghetto as fuck (I stuck a normal headset mic onto a pair of cans)

>>	Anonymous Sat Oct 18 16:38:30 2014 No.712889 >>712888 Err, zip-tie, not twist tie.

Anonymous Sat Oct 18 17:18:56 2014 No.712906

Would these be decent for some basic motorcycle maintenance and repair work?

http://www.amazon.com/Stanley-89-339-12-Point-Professional-15-Piece/dp/B000NJ63Q8/ref=cm_cr_pr_product_top

http://www.amazon.com/Stanley-91-930-2-Inch-Release-Ratchet/dp/B000NJ7U1U/ref=pd_bxgy_hi_text_z

http://www.amazon.com/Tradespro-836574-Metric-Wrench-22-Piece/dp/B004QO9MAU/ref=pd_cp_hi_3

Anonymous Sun Oct 19 05:51:10 2014 No.713153
File: 360 KB, 800x600, 435345.jpg [View same] [iqdb] [saucenao] [google]

>>703204
I'm decorating a wall, and I've removed the wallpaper. The plaster underneath has a lot of old paint on it, and the finish is pretty poor. Should I try to scrap/sand off all of the old paint, or should I plaster skim the wall smooth?

>>	Anonymous Sun Oct 19 05:59:38 2014 No.713154 >>713153 No, you sand the wall thus removing everything that isnt sticking to the wall. Then you plaster the wall smooth. Sand it, and possibly plaster/sand again.

>>	Anonymous Mon Oct 20 18:32:25 2014 No.713964 it's OK to take care of a solder tip with very fine sandpaper? if not, how? i mean, to take away that black crust or sth that forms there.

>>	Anonymous Mon Oct 20 19:42:45 2014 No.713985 >>713964 No. Put more solder and flux on the tip and clean it on a sponge. Continue until clean.

>>	Anonymous Mon Oct 20 22:11:46 2014 No.714042 >>713985 what kind of sponge?

>>	Anonymous Mon Oct 20 22:25:17 2014 No.714045 >>714042 A cellulose sponge.

>>	Anonymous Mon Oct 20 23:24:36 2014 No.714061 File: 8 KB, 240x180, head_verdichterrad.jpg [View same] [iqdb] [saucenao] [google] is it possible to cast one of thies babies and then refine it into shape

>>	Anonymous Mon Oct 20 23:26:34 2014 No.714063 >>714061 Is it possible? Yes. Is it feasible for some random guy at home? Hell no.

>>	Anonymous Mon Oct 20 23:46:55 2014 No.714082 >>714063 is there a cheaper way?

>>	Anonymous Mon Oct 20 23:49:58 2014 No.714083 >>714082 Did you ask google?

>>	Anonymous Mon Oct 20 23:57:07 2014 No.714089 >>714083 not much for a cheaper option but i saw that people use cnc machining though i found another method using a wax model to cast the shape

>>	Anonymous Tue Oct 21 00:24:33 2014 No.714099 anybody know a good solvent to use for old graphite valve packing?

>>	Anonymous Tue Oct 21 03:11:37 2014 No.714127 > it's OK to take care of a solder tip with very fine sandpaper? scrape with back of x-acto knife, or similar, to remove oxidation. tin it to keep if from oxidizing again soon.

>>	Anonymous Tue Oct 21 20:39:34 2014 No.714431 How do I work out the base resistance/current for an NPN transistor? I have a very limited understanding of the physics behind their function so I am pretty worried about stuffing something up. Thanks /diy/.

Anonymous Tue Oct 21 23:32:38 2014 No.714497

>>714431
You mean measuring it or estimating it?
For CC it would be
IB= (Vcc-Vbe)/Rb
Ib is the basecurrent, Vcc is the voltage that generates the Ib, Vbe is the voltage drop from the base to the emitter, usually 0.7/0.6 V
Rb is the Resistance between Vcc and the tranny's base.
Base current is usually very little, microamps.
This current controls the collector's current, which is usually proportional to the base current, the relation between them is Beta or hFE
buy some cheap transistor (2n3904, 2n2222) and some resistances, a 1M pot and measure the current changes with Rb Variaton (the pot)
hope this helped

>>	Anonymous Wed Oct 22 08:29:13 2014 No.714607 >>714497 What is CC?

>>	Anonymous Wed Oct 22 10:01:24 2014 No.714627 >>714607 CC is constant current. AC is alternating current, All this is explained in every beginner's electronic book.

>>	Anonymous Wed Oct 22 18:50:37 2014 No.714805 >>714627 Cheers dude. Maybe I should pick up one of those books...

>>	Anonymous Thu Oct 23 05:18:15 2014 No.715057 > CC is constant current only in French. in English we say DC, as in Direct Current.

>>	Anonymous Thu Oct 23 06:13:59 2014 No.715066 File: 27 KB, 838x515, slowpoke.png [View same] [iqdb] [saucenao] [google] Do you know what happened today? Pic related : you have 10 seconds to figure out and another 10 minutes to

>>	Anonymous Thu Oct 23 11:00:08 2014 No.715123 >>715066 Damn it was slow even when it was created.

Anonymous Thu Oct 23 11:07:11 2014 No.715126

>>715057
Oh yes indeed, that's right. sorry if i confused the guy asking about transistors.
I'm not french by the way, Spanish speaking south american. we say Corriente Continua, continous current, maybe that's what confused me.
It seems that the French says Courant continu, which is not a surprise since our languages share roots.

>>	Anonymous Thu Oct 23 18:46:17 2014 No.715295 >>703495 >I found a Wowwee Robosapien for $8 at mine. I gave him a RasPi brain transplant and now he's my best robot. pics?

>>	Anonymous Thu Oct 23 23:42:35 2014 No.715392 >>703204 will certain paints and certain lacquers react badly with each other ie bubble? the kind you would use on timber I mean

>>	Anonymous Fri Oct 24 00:09:03 2014 No.715398 What would be the smallest possible size for a variable voltage power supply outputting 5 or so amps?

>>	Anonymous Fri Oct 24 01:35:12 2014 No.715413 good little projects to do in an altoids box? I dont really want a usb charger or flashlight like most of the shit on youtube

>>	Anonymous Fri Oct 24 02:06:20 2014 No.715420 I think I am looking for rendering software? I want to plot out the inside of a van using 3D stuff. What do I download?

>>	Anonymous Fri Oct 24 08:57:15 2014 No.715493 >>715413 A tiny radio receiver with jack for headphones

>>	OP Fri Oct 24 09:27:41 2014 No.715499 File: 194 KB, 500x1058, wut.gif [View same] [iqdb] [saucenao] [google] >>703204 What the hell is this witchcraft?

Anonymous Fri Oct 24 09:48:30 2014 No.715507
File: 16 KB, 1052x457, flag rough.png [View same] [iqdb] [saucenao] [google]

Okay, I'm gonna be sewing two arm patches for a halloween party costume. "Ukrainian" "rebel", ie russian sent from motherland over to the Ukraine to blend in.

This means I'll be sewing a russian flag and a Ukrainian flag. I'm thinking of sewing the russiam flag along the lines of my pic. I bought white thread when I bought the fabric and undoubtably have red thread somewhere in the house. Sew the blue underneath the red and white and fasten it down on the upper and lower edges. Depending on what treasures I find in the sewing trove I might dew the side edges too. Would this make it somewhat sturdy and even on the showing side?

The ukrainian flag would be intentionally shitty to go along with my booze being labelled "Russian [crossed over] Ukrainian Tap Water". That and the factt hat the russians in the ukraine were easy to spot form a mile away, apparently.

>>	Anonymous Fri Oct 24 12:58:29 2014 No.715569 >>715507 First sew the edges of the patch together so its all one piece. Then sew the finished patch onto the coat.

>>	Anonymous Fri Oct 24 14:22:47 2014 No.715594 >>715569 Been dicking around with the fabric for a bit and I think I know what you're getting at. Only problem now is getting 4/3 cm wide strips.

>>	Anonymous Fri Oct 24 17:34:17 2014 No.715673 Anyone have a good model of the back plate of a Samsung S4? Im thinking of printing ones with my school logo on them and selling them at football games. Maybe printing one out of aluminum for myself, too.

>>	Annonymous Fri Oct 24 18:40:53 2014 No.715701 >>715507 Why don't you use velcro to save time and trouble. .

Anonymous Fri Oct 24 18:48:27 2014 No.715702
File: 54 KB, 741x622, rlm mike sweat.jpg [View same] [iqdb] [saucenao] [google]

The control valve under my sink was leaking, so I took it apart and replaced the washers. I gave everything a light coat of plumber's grease, but I didn't use any pipe tape when putting it back together. Should I have? Am I gonna come home to a flood of water?

>>	Anonymous Fri Oct 24 21:24:16 2014 No.715759 how transparent are LCD screens? I think it would be cool to take some and put them over windows

Anonymous Fri Oct 24 21:34:34 2014 No.715762

>>715702
if the fitting had an olive as part of a compression fitting and you put plumbing compound on it or a washer then you don't need ptfe tape
if one of the threads was plastic generally you dont need ptfe tape
if its one metal bit screwing into another metal bit you probably should use it.

but really if its not leaking then whats the problem?

>>	Anonymous Fri Oct 24 22:35:27 2014 No.715779 I have a old storm lantern. I put some unscented parrafin lamp oil, but when I light it, it smells as if I had my face right into a barrel of burning kerosen. How can I clean it of the old oil residues?

Anonymous Sun Oct 26 23:03:18 2014 No.716897

hey /diy/, so tl;dr, my asshole of a cat (he's 1 yo) chewed through the wire of my desktop subwoofer not too long ago.
I remember my father used to strip some of the rubber sheathing off the exposed wire on both ends and sort of pinch and twist them together to get split cables to work on old lamps and such.
Is this essentially the same fix for this problem? If not, would I need to solder it? Lastly, would duct tape provide adequate sheathing for the exposed wire?
Thanks!

>>	Anonymous Sun Oct 26 23:45:15 2014 No.716914 >>716897 If its just a plain sub with no controls on it anything else weird it should just have 2 wires. They should be easy enough to fix. If it has more than 2 you will have a much harder time.

>>	Anonymous Sun Oct 26 23:54:27 2014 No.716916 >>715779 petrol, or acetone. Multiple flush throughs

>>	Anonymous Mon Oct 27 01:32:56 2014 No.716946 >>716914 I've lucked out! The sub only has 2 wires you are a scholar and a gentleman, sir Thank you

>>	Anonymous Mon Oct 27 14:57:34 2014 No.717148 Fun stuff or decorations to make on a mill or lathe?

Anonymous Mon Oct 27 17:43:47 2014 No.717204

Why when i set my ground plane in eagle it ends up like upper part of pic related instead if bottom?,

i actually have to do bottom manually since it does not make any sense that the entire circuit is grounded but the points that are goind to be soldered just have 4 little w

Anonymous Mon Oct 27 17:45:32 2014 No.717206
File: 209 KB, 2089x2185, 12.jpg [View same] [iqdb] [saucenao] [google]

>>717204
Why when i set my ground plane in eagle it ends up like upper part of pic related instead if bottom?,

i actually have to do bottom manually since it does not make any sense that the entire circuit is grounded but the points that are goind to be soldered just have 4 little wires atached, sorry for double post, i forgot the pic

>>	Anonymous Mon Oct 27 17:46:34 2014 No.717208 >>711417 because it was done with crayons and a ruler?

>>	Anonymous Mon Oct 27 17:59:21 2014 No.717215 >>717206 They're called thermals. They make soldering faster because heat doesn't spread to the entire plain as fast as solid connection. You can turn them of by going to the properties of the polygon.

>>	Anonymous Tue Oct 28 15:56:44 2014 No.717688 >>703204 Anyone know if you can make a paint with iron oxide? Like native americans?

Anonymous Tue Oct 28 20:23:39 2014 No.717890

>>717688
>paint with iron oxide

Yes. Linseed oil and iron oxide. If you need more opacity, add some titanium dioxide or dry clay. (both are cheap at pottery stores.)

Protip, Linseed oil is the oil they mean when they talk about oily rags catching on fire. It is exothermic when it is drying, and will spontaneously combust on a rag that is tightly packed or in a closed container.

http://www.gamblincolors.com/artists.grade.oils/earths/

(Trivia. Iron oxide can be black, red, or yellow.)

Anonymous Tue Oct 28 23:27:23 2014 No.717991

>>716897
Twisting will work without soldering, but will probably come loose over time/strain.

Duct tape will be enough insulation for this, but is a "cheap fix."

Be sure to duct tape the wires separately, as to have insulation between the two copper wires.

>>	Anonymous Wed Oct 29 00:18:58 2014 No.718014 >>703207 Rustoleum. It's a metal paint sold at hardware stores that's meant to help eliminate and prevent rust

>>	Anonymous Wed Oct 29 00:20:12 2014 No.718015 >>703441 There's screw extraction kits sold at you're friendly acehardware store

>>	Anonymous Thu Oct 30 15:43:38 2014 No.718689 File: 61 KB, 669x527, danboo.jpg [View same] [iqdb] [saucenao] [google] >>708449 >4chan >not knowing the admirable and great Danbo I know it's not spooky but still

>>	Anonymous Thu Oct 30 17:12:17 2014 No.718718 >>717991 Duck tape*

Anonymous Fri Oct 31 14:49:23 2014 No.719170

>>703204
I'm looking for some earbuds to wear at work, not I'm a mechanic so Like half the day I'm listening to a compressor, grinder people that are fucking around with said grinder and compressor and every once in a while some brakes that seem to even make cargo trains flail

Also happy Halloween everyone!

Anonymous Fri Oct 31 16:14:07 2014 No.719192

I'm thinking of using an electric cooler in my house instead of a fridge, since I barely use the fridge. When I look them up they say they have 12V plugs, I assume because they're intended for use in a vehicle. I'm reading product reviews and I wonder, does it make much difference if I'm using it in the house? Or should I pay attention to the complaints people leave about which ones suck up too much energy?

I googled it but I didn't find dumb enough explanations.

Anonymous Fri Oct 31 18:00:09 2014 No.719233

>>719170
http://www.ebay.com/itm/Orange-Plugfones-NOISE-ISOLATING-EARBUDS-EARPLUGS-HEADPHONES-HEARING-PROTECTION-/190711743065?pt=US_Headphones&hash=item2c674e4259

I believe these will work for you good sir. I wear them when I ride my motorcycle, as ear buds in both ears is illegal but ear protection is not.

Anonymous Fri Oct 31 21:34:56 2014 No.719325

Really weird question, I have an old bed frame (wooden posts, frame itself is metal, and what there's wooden planks that support the mattress across it) and I need it broken. Not just taken apart mind you, I need it to look as though wear and tear just got the better of it without me intentionally fucking with it. Any ideas on how to assassinate a bed frame?

Anonymous Sat Nov 1 20:10:02 2014 No.719692
File: 248 KB, 1632x1224, DSC_0249.jpg [View same] [iqdb] [saucenao] [google]

Will a small butane torch (like the ones used for cooking) be hot enough to melt and seal the top of a pyrex glass tube?

Pic related, I want to heat that nipple thing and push with some tweezers to remove it, sealing the hole and leaving a round surface. Like laboratory tubes.

Anonymous Sat Nov 1 20:13:08 2014 No.719693
File: 84 KB, 1280x955, 1280px-Butane_torch.jpg [View same] [iqdb] [saucenao] [google]

>>719692

I was thinking about buying something like this. I don't want to spend more money because I'm only going to do this some dozens of times.

I tried placing the tube in a drill and heating the tip with a conventional lighter while the tube was rotating, but I only got it to glow red hot.

>>	Anonymous Sun Nov 2 05:46:47 2014 No.719918 >>719693 pyrex is boro silicate glass, its designed to be high temp resistant, you'll need a lot more heat, like 3,000 degrees.

>>	Anonymous Sun Nov 2 05:49:43 2014 No.719919 >>719692 yes. you can do it over a gas stove even. this is how people fix cracks in their meth pipes

>>	Anonymous Sun Nov 2 08:50:25 2014 No.719952 I'm building my own desk, what would be the best wood for the surface of the desk? I'm going to stain it with just a natural brown colour so I'd like a nice looking wood too

Anonymous Sun Nov 2 09:16:11 2014 No.719964

>>719952
first, build a solid wooden toolbox or saw horses. now move on to the bigger desk project.

its all up to what is available and how deep your pockets are. brazilwood is very nice. if you're going to stain it, get anything but pine. pine clouds stains terribly. hardwoods look delicious and dark anyway. I'd suggest an epoxy finish because its easy to clean and solid and scratch resistant.

>>	Anonymous Sun Nov 2 10:04:42 2014 No.719984 >>719918 I'm not sure if its pyrex, I said it was because It didn't crack when heated and because I took them from detachable syringes.

Anonymous Sun Nov 2 13:27:49 2014 No.720076

>>719693
you're going to need a fuel/oxygen torch to do that, especially if its borosilicate. To test for if its borosilicate glass, fill it with glycerine. If the inner surface of the glass is difficult to see and it looks like a solid piece of glass, it's probably boro. This is because glycerine and borosilicate glass have about the same refractive index.

>>	Anonymous Sun Nov 2 13:50:16 2014 No.720082 Can i use kde connect ob ubuntu, if so. How can i install it, if not what distro do i need?

Anonymous Sun Nov 2 14:26:04 2014 No.720095

>>720076

I don't have glycerine, but I have a small HHO torch I made a year ago, it will take me a while to set up though.
I,ll probably buy a butane torch anyway because it's quite handy.

>>720082

You should ask /g/, unless they say they answer gentoo.

>>	Anonymous Mon Nov 3 06:50:34 2014 No.720575 >>705172 Regarding the “ceiling rose”: Do British electrical codes require the source cable from the breaker panel to go to the light fixture first or can it also go to the switch first? >>705188 No. We Yanks use white for neutral. Red is live.

>>	Anonymous Mon Nov 3 08:11:05 2014 No.720596 >>720575 In the UK, you can run the lighting ring through the ceiling rose or through the switch. Whatever's more convenient.

>>	Anonymous Mon Nov 3 08:13:36 2014 No.720598 >>719325 Loosen up all the screws, and then fuck on it.

Swifts !WiNDUPyWhk Tue Nov 4 09:49:03 2014 No.721167

How should I go about building some sort of 'grounding' points or how-ever you'd call it for my ATV.

Basically I'm going to be buying a 12V winch that'll run off the ATV and we're planning on using it for winching wood but since the ATV is light as shit doing such will be very difficult since the ATV will likely be going towards the tree rather than the other way around.

Anonymous Tue Nov 4 10:53:09 2014 No.721192

>>703204
when making soap. you have to mix lye and water. most peope say to do this outside and then bring it inside after it cools down. is it no longer dangerous to inhale like it was before? and after which how is it not dangerous to bake this in the oven?

Anonymous Tue Nov 4 14:17:11 2014 No.721255
File: 2.83 MB, 1600x1199, redcontainerday.png [View same] [iqdb] [saucenao] [google]

My friend wants to get into serigraphy to make some tshirts, but he doesn't knows how to make the mesh. I believe some parts of it are totally covered and the paint can't get through it and some parts are just mesh so the paint get's through to make the drawing.

He was wondering how to make a homemade mesh, I have some knowledge about toner transfer, electroetching... if that is useful...

>>	Anonymous Fri Nov 7 18:04:08 2014 No.722779 Just one last bump to conserve this thread to be able to read it later.

Anonymous Fri Nov 7 18:10:04 2014 No.722784

>>721255
never done it but you get uv reactive painty stuff and cover the mesh with it
print design onto transparent paper (like OHP film)
cover mesh with design and expose to uv light.
also you should probably have done the previous steps in a dark room, read instructions on the painty stuff.
everything exposed to uv will turn hard
everything covered by your printing can be washed off over the bath using a shower nozzle or outside or something.

you need separate meshes for each ink colour you use.

>>	Anonymous Fri Nov 7 19:17:13 2014 No.722836 Is farming extremely difficult? I have been reading up on Medieval work days and stuff and it seems like the peasants had it easy as hell when they farmed. Tons of breaks/holidays/etc. Exactly how hard is farming? Starting a small crop farm?

Anonymous Sat Nov 8 02:17:47 2014 No.722992

>>722836
All the farmers that I know bust their fucking asses, although they do have some free time.

You need to plan over a timescale of years, and it may be years before your farm becomes actually productive.

You can't procrastinate at all. If something needs to get done, you need to do it before it starts a cascade of other problems.

You'll wake up before sunrise, every day.

But, it's really quite rewarding in a whole multitude of ways.

The experience of a large single-crop farmer with lots of automation might be different, idk

Also, it could be a surprisingly large amount of capital?

Anonymous Sat Nov 8 02:25:56 2014 No.722995

>>721192
Lye is absolutely safe to breathe around, it's a salt (NaOH/KOH) and can't evaporate to any meaningful degree, even if you heat it up.

Splatters could do some damage, but steam is ok. It isn't very bad on your skin if you rinse it off reasonably fast... unless it's in your eyes, in which case you're fucked.

Good reasons to do it outside:
>smells like shit
>messy
>lye splatters put holes in property

>>	Anonymous Sat Nov 8 02:39:40 2014 No.722999 >>722836 >>722992 What scale of farming are you discussing, and what type of crops? Timescale of years? That sounds more like a commercial farm from scratch, or starting with low quality land, or an orchard farm for fruits.

Anonymous Sat Nov 8 02:44:13 2014 No.723000

>>708054

you can program arduino boards in c, atmel has a version of visual studio set up for the avr toolchain which is available for free download

it's possible to get a lot more performance out of them, and it's also fun in the most autistic sort of way

>>	Anonymous Sat Nov 8 02:47:01 2014 No.723002 >>722999 permaculture, livestock/poultry/plants

>>	Anonymous Sat Nov 8 03:27:13 2014 No.723015 >>703204 Will superglue sand properly or does it become flexible once dried?

Anonymous Sat Nov 8 04:06:00 2014 No.723032

I am looking at making a little VR device with my Nexus 7 (Its a little bit bigger than ideal, but it'll do) to give me an idea of what the Oculus Rift is like without shelling out for a DK2. Making the frame for the thing is simple enough, I can even download cardboard templates off the internet, but where I am struggling is the lenses.

Has anyone here done Google Cardboard or anything similar in the UK and if so where did you get your lens, I am looking for a x5 Aspheric 50mm lens but I have no idea where to get one over here, preferably today.

http://www.ebay.com/itm/5x-pocket-loupe-magnifier-with-Aspheric-Lens-/380319537252

That is the ideal lens but it is from the States and would take a while to ship.

>>	Anonymous Sat Nov 8 04:10:04 2014 No.723034 >>723032 Wouldn't someplace like a camera and photography place have lenses?

>>	Anonymous Sat Nov 8 04:11:12 2014 No.723035 >>723034 I have had a look online at the main camera place in the UK, Jessops, and they don't have pocket lenses, just camera.

>>	Anonymous Sat Nov 8 06:35:55 2014 No.723074 is anyone here using a cracked version of altium designer? does it work?

>>	Anonymous Sat Nov 8 06:36:56 2014 No.723075 >>703523 soldering is ridiculously easy

Anonymous Sat Nov 8 07:04:56 2014 No.723083
File: 2.41 MB, 2560x1920, P1050432.jpg [View same] [iqdb] [saucenao] [google]

I got out my old computer from my basement to experiment some things with an ISA bus.
Hooked up the computer, tried to boot it and... black screen.
Checked few elements on the PCB and found the likely cause (see pic). Need clarification is this oscillator really dead (the other oscillator doesn't look like it) and if it's possible at all to find out what its parameters used to be.
Sorry for quite dumb question, my knowledge in circuits of computer internals is a bit low.

Anonymous Sat Nov 8 11:59:04 2014 No.723180
File: 166 KB, 559x800, 19thcenturystallman.jpg [View same] [iqdb] [saucenao] [google]

Looking into building an electric bike.
I had my eye on this kit here:
http://www.ebay.co.uk/itm/Electric-Bicycle-E-Bike-Conversion-Kit-48V-1000W-Brushless-Motor-Rear-Wheel-/170939207305?pt=UK_Bikes_GL&hash=item27ccc54e89..
It doesn't include a battery though and after looking around on forums and a bunch of different ebike retail sites as well as ebay I found that batteries are expensive as fuck.

Anyway, my question is can I build my own battery like this
(http://www.ebay.co.uk/itm/2014-Model-48V-10-4ah-bottle-holdermount-lithium-Li-ion-electric-bike-battery-/171524013964?))
one using four of these?
(http://www.ebay.co.uk/itm/DC-12V-6800mAh-Super-Rechargeable-Lithium-ion-Battery-ON-OFF-Switch-OVS-SCA-0650-/171327297905?pt=UK_ConsumerElectronics_Batteries_SM&hash=item27e3e71971))
The massive price difference makes me think I can't, I know very little about electronics though so I really have no clue.

Anonymous Sat Nov 8 12:48:14 2014 No.723198
File: 33 KB, 774x282, shelf.jpg [View same] [iqdb] [saucenao] [google]

Quick question on some materials selection.

I want to make a horizontal shelf (pictured) for indoor use. The catch is that it needs to be able to support 300-400lb of evenly distributed weight on the top. Should I be okay using 3/4" five-layer plywood as long as I have plenty of "shelves" in it for support?

>>	Anonymous Sat Nov 8 12:55:47 2014 No.723200 How many amps do I want when stick welding with 7018 rods? How much should I weave?

>>	Anonymous Sat Nov 8 13:26:09 2014 No.723209 >>722995 also where the fuck do you buy lye now anyways. I've been to every tractor supply, home depot, lowes and walmart and they say they dont carry it

>>	Anonymous Sat Nov 8 19:34:24 2014 No.723434 >>723209 you can get sodium/potassium hydroxide on amazon... or in asian markets? chinese people cook with lye sometimes or from lots of places online idk i'm a chemist so i just order from my suppliers but amazon's fine even though overpriced

>>	Anonymous Sat Nov 8 19:38:51 2014 No.723435 I'm looking into screen printing my own shirts, but am unsure of exactly where to start. Should I go for a starter kit? If so, which one? Or should I seek the materials individually?

Anonymous Sat Nov 8 23:04:08 2014 No.723547

I've got an Xbox 360 that keeps switching itself on.

It keeps switching itself on because it keeps picking up RF down its USB port.

It keeps picking up RF down its USB port because I used a 15m USB wire, with an active repeater, to go across my living room by going the long way round the outside.

I tried ferrite chokes, but to no avail.

My question is this: can you switch USB through a relay? AIUI, switching USB through a semiconductor is going to not work. I can easy-enough pull a 5v that's hot only when the xbox is on, but am I wasting my time using that to control a relay to disconnect the giant extension when the xbox is off?

Is the whole thing a waste of time because the RF will just jump the across the relay's terminals?

Anonymous Sun Nov 9 01:00:55 2014 No.723571
File: 25 KB, 360x360, USB_Extender_50M_Single_LAN_cable_USB.jpg [View same] [iqdb] [saucenao] [google]

>>723547

of course you can switch USB thru a relay; you can switch pretty much anything thru a relay. tho, I dont see how that's gonna help, all you're doing is exposing the wires which will inject more interference. one thing i've tried that works to get long USB runs, like 50 meters, is to use an USB-Ethernet extension like pic related.

>>	Anonymous Sun Nov 9 03:01:56 2014 No.723610 >>708778 Also called a brush axe.

>>	Anonymous Sun Nov 9 05:12:42 2014 No.723657 >>723547 yes. simply unplug the cable from your xbox when not in use. this switches all five contacts simultaneously and costs nothing.

Anonymous Sun Nov 9 09:10:39 2014 No.723707

>>723571
The hope was that either:

disconnecting the massive aerial would reduce the incoming RF somewhat

or

disconnecting the peripherals when the thing's off would make the thing ignore the port. The hypothesis being that interference on the link to the repeater or the hub makes it think the hub's just been plugged in and it should switch on to see what's up.

>>723657
Thanks, Sherlock. I'd also have accepted "just trail all the wires across the middle of your living room", and "unplug the xbox from the wall when not in use".

>>	Anonymous Sun Nov 9 14:33:46 2014 No.723803 Any body know a good chromed stainless steel polish substitute? Like WD-40 or lemons or something?

Anonymous Sun Nov 9 16:26:05 2014 No.723862

>>703204
I need to rotate a 44" antenna that weighs 3.5 lbs using an electric motor; I want to calculate the torque required by the motor. I don't think I did it right as I found torque required to be ~6.5 ft-lbs.

Am I even thinking about this the right way? Most DC motors online seem like they have very low torque.

Thanks in advance.

>>	Anonymous Sun Nov 9 21:36:41 2014 No.723982 >>723803 toothpaste might work

Anonymous Sun Nov 9 21:43:55 2014 No.723987

>>723862
You can't calculate the torque required unless you know (or can make a stab at) the weight distribution, as you have to integrate that to get the aerial's moment of inertia.

Further, in the absence of friction any torque will accelerate any mass at some rate. You need to be calculating the friction in the system throughout the speeds it will operate at, because once the antenna actually is accelerated, the friction trying to stop it will dominate the power requirement.

Finally, yes small motors do have low torque. This is why we have gearboxes. Any motor can give you whatever torque you like, or whatever speed you like, just not both at the same time.

Anonymous Sun Nov 9 22:14:21 2014 No.724001
File: 131 KB, 1000x1013, rotor.jpg [View same] [iqdb] [saucenao] [google]

> I need to rotate a 44" antenna that weighs 3.5 lbs using an electric motor

this $3 thrift-shop rotor has a dinky little motor in it, but thanks to gears is able to generate enough torque that I have trouble stopping it bare-handed.

>>	Anonymous Mon Nov 10 06:56:11 2014 No.724185 >>703791 green text is used to quote somebody... on a boards

>>	Anonymous Mon Nov 10 07:15:36 2014 No.724195 File: 1.98 MB, 2592x1936, image.jpg [View same] [iqdb] [saucenao] [google] I'm making a small box and I want the lid to look like the rough sketch. How would I taper down the shaded areas?

>>	Anonymous Wed Nov 12 13:38:25 2014 No.725221 >>717215 this. I've had the experience you don't really need those, but for reflow stuff it might be important so you don't get tombstoning.

>>	Anonymous Thu Nov 13 03:33:50 2014 No.725550 File: 198 KB, 597x487, eighteentieknots-18.png [View same] [iqdb] [saucenao] [google] I got a big old TV and a bunch of burnt cooking oil around and I want to do something with them. Wat do? Pic unrelated

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/diy/ - Do It Yourself