/diy/ - Do It Yourself

>a bottle of vinegar to soak the mouth cover

What the fuck that sounds like a terrible idea. Certainly there's an equal strength or better chemical scrubber that won't require you to be sniffing vinegar, that shit smells nasty.

>>570948
If it's a choice between smelling vinegar and dying, I think you'll take the vinegar smell, kid.

>>570979

>tear gas
>dying

okay

It can do some pretty bad damage to you actually... Sodium bisulfite can help neutralize it.. alkali solution of water vinegar sounds like it would work fairly well.

>>571008
This. That shit is meant for make people run away not stand and breath it until it passes. My aunt worked for the police and the fuckwit released a bit of some canister in a room. Just a little "phhhist" and the whole room was unbearable to stay. And OP. I'm trying to make a solder melter/hot air gun with an glue gun I had laying around and pic related. I'll have to find a way to increase the RPM of that engine and make some smaller and more efficient blades out of some shit I have laying around here and see if I can make it run on AC. If it's not possible I'll have to make a cocoon and a battery nest made of duct tape so I don't get burned.

>>570940
It will actually heat up a small room very nicely.

>>571677
impossible, it cannot give out more heat than the candle does.

>>571679
it doesn't, but it distributes it better into the room. The candle makes a tony jet of super hot gas that goes up to the ceiling and makes a little warm spot.

the pots make a big heat exchange with all the air in the room. All the pots get nice and warm because the candle heats them up, then air in the room goes over them and gets hot.if designed right, a convection current exists and it will actually pump air over itself

>>571677
>>571682
Oh god... Keep this trash off /diy/

>it doesn't, but it distributes it better into the room.
Sure.... but its still a fucking tea light... Which will not heat up anything larger than a closet. Is your room bigger than 2 square feet? Than it wont make a discernible difference, unless its hermetically sealed.

>>571686
>diy for less than $10
Seems appropriate for the thread regardless of how well it works.

>>571677

This has been tested before and stackexchange found that it's mostly bullshit. You see only minor changes.

>>571692

You know what else is less than $10 and will heat up a room just as well? A 100W light bulb. GTFO.

>>571695
Go ahead and show me the lightbulbs you've made yourself for less than $10.

>>571699

Oh, did you make the terracotta pots, washers, bolt, nut? Didn't mean to rustle your feathers by reminding you that your understanding of thermodynamics is utter shit.

>>571700

I'm not >>571677

I was just saying his post was valid regardless.

>>571701

Valid in what regards? It looks pretty but otherwise has no useful function?

Oh ok, continue on with your arts and crafts.

>>571686
okay, so put 6 or 7 candles under it if you're that cold.

small candle is about 8.5g of wax, about 40kj/g that's 340kj in one little candle

689kj is all you need to warm up a small room (45kg of air) by 15 degrees c, which is pretty toasty.

so... Two candles at once. It give yourself an hour since a tea light runs for about 30 min.

>owners alight

>>571703

>340kj in one little candle

Cite, cite, mother fucking cite.

Because here is mine saying you're wrong:

http://fire.nist.gov/bfrlpubs/fire05/PDF/f05141.pdf

>>571705
... Google tealight weight. .3oz aka 8.5 g

parrafin wax has 42kj/g. Rounded down to 40 because who knows what the average wax is in abtealight, but its probably some solid rich carbon fuel source .

you seem like the one that can't into thermodynamics

>>571711

So essentially 653 BTUs over a half hour. Yeah, buddy, that's REALLY going to crank that heat up! That's about 1/10th of the output of the lowest out space heater.

Hahahaha kudos for trying to bust out the inapplicable to seem more knowledgeable than you really are!

>>571705
your own motherfuckingnpaper

43Mj/kg net heat of combustion

>>571713

Keep reading and you'll see that factored into real world results!

>>571712
inapplicable
vs. Totally applicable and could totally tell you tlhow many candles you might need

having to use amerifat btu units.
>amerifat boilermaker detected

>>571715

Yeah, load the room up and go beyond the initial $10. Increase carbon monoxide exposure as well!

I'm sorry that you can't comprehend net combustion heat and mass loss and their relationship.

>>571717
>I told you the net combustion heat of the candles accurately.
>I told you how many candles you'd need for quite a huge gain in temperature (15C)
>I never lied about anything, I underestimated in the Devil's favor

>The whole conversation is about using an array of ceramic pots to keep the thermal mass of the candle around for longer, and increase the radiant surface area.

>brings mass loss back up again
>bertstare.jpg

>>571718

15 C in what size room, dipshit? Your numbers are only telling half of the story; the other half you're fabricating or misunderstanding completely.

Thermal mass? Alright, let's see the calculations then.

I'll save you time:

http://skeptics.stackexchange.com/questions/18338/is-this-tealight-flowerpot-heater-more-efficient-than-just-tealights

>>571721
3 x 4 x 3m room, from 5C to 20C, 45kg of dry air. 689kj needed to raise it that far given the specific heat of it... AKA Exactly what I said earlier.

>>571722

So what type of insulation does your room use that results in no loss? Your argument has devalued to the point of needing impossible theoreticals so that it has some semblance of accuracy.

>>571700
lil babby took intro to thermodynamics and community college and thinks he's a fucking engineer.

>>571731

Do they offer thermodynamics at community college? Sorry you couldn't immediately spot the BS, partner.

>>571722

im curious, over what time period is that increase? can i see your calculations?

>>571731
>amd gpu
I think you won't be needing a space heater

>>571731
A terrible place for a globe. But the rest pretty fucking neat.

>>571787

It's all for show and not functionality.

Even if you don't think that it's a good idea, stop talking about this:
>>571677
The point has been made. That's not what this thread is about.
As for cheap diy, check out Gingery's books on the forge, lathe, etc.

You can shape a chunk of wood into lots of useful things.

>>572304
In before oak dildo.

Has the thermodynamics kid gone to sleep? Can we talk now?

>>572343
I've learned how to make a resistent soil mix with sugar and flour. I think I'll make a "clay" stove. (The soil here at home is very sandy. But it works)

>>572346
Timed detonator for under 10$. Most of my /diy/ stuff is in pdf format and I'm too lazy to take pics. I must have some gigs of various assorted books.

>>572352
Using a Mickey Mouse clock is traditional, you pleb.

>>572308
>>572304
It looks more like an anal drill-plug.

>>570982
He probably thought it was a gas mask.

>>570979
Tear gas is just for riot control, non-lethal.

>>571702
Why is this board filled with so many autistic faggots like you? Go back to >>>/sci/ or >>>/mlp/, fuck, even >>>/a/. You'll fit in better you horse-fucking autist.

>>571726
>So you've proved me wrong so far but THAT DOESN'T MEAN I CAN'T BE RIGHT

Jesus just fuck off already.

>>571677
Unless you've got cold fusion terra cotta, there's no way you're going to heat a bedroom with one of those.

>>573964
But cold fusion is cold anon. How it'll heat a room?

Ok dipshits, we get it. You don't like the pot candle heater idea. Let's MOVE ON. Take it to /b/ if you want to keep arguing about it. Meanwhile, post something meaningful and useful.

>>575390
over budget

>>575506

>>575509
what the hell. I want to know more about this mechanism.

>>575509
nice. although i'd be afraid to use it because the barrell could turn into a fucking rocket and hit you really hard in the face.

>>575521
>>575525

what caliber ammo is that? I wouldn't do it with heavy ammo.

i think the way it works is that wood strip with the two screws lifts up and allows the trimmed-out u-shaped metal band to go up.

before firing after storage for a while, I would tighten the hell out of those hose clamps, due to wood drying out and metal fatigue.

elegant.

>>572346
Ooh, that sounds interesting. Elaborate? What are its characteristics?

>>570940
>>571677
>>572304
>>572352
>>575390
>>575509
50 replies, 6 viable suggestions. One post is OP's, that means 43 posts of garbage.

Well done, /diy/.

>>575529
looks like .45acp.

it's a gun shaped object. There's no firing pin. The barrel would shoot back at you.

>>572346

explain

>>575562
>>575509
/k/ here. /diy/ has a no weapons rule so I'll just clarify a bit. The thing in that picture wouldn't work because there is no firing pin, but it is based on a viable design from TM 31-210 US Army improvised munitions manual. For it to work you drill a hole in the plug at the back and stick a nail into it (with the pointy bit clipped off). You place a round into the "chamber" and screw the plug back in. Pulling the trigger causes the "hammer" to shoot forward and smack the nail, setting the round off.

If sufficiently held on, the barrel should stay in place. I would recommend sticking to .22 caliber er if you were going to make one though. However the manual I mentioned claims that .38 and .45 caliber versions were tested successfully.

Picture not related.

>>571677

just put an alcohol candle and it will have enough heat. Building it right now to test it, thanks anon.

>>571731
>suddenly, MCM battlestation guy
>okay.jpg

>>577246
That's fucking stupid.

>>571731
OMG, you got an Eames lounge chair and ottoman but you chose the 2nd worst colour it comes in, I find myself envious and hateful in equal measure.

It's black + walnut or don't bother, everyone with taste knows this ^__^

Now pic related so that I'm contribootin'

>>577246
That is pretty cool. They would look great with leds under them.