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How To Make a Smoke Bomb

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Unread postAuthor: Lentamentalisk » Tue Mar 25, 2008 11:08 pm

Do you have any suggestions as to how to "ball mill" if we dont have any specialty equipment?
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Unread postAuthor: ammosmoke » Tue Mar 25, 2008 11:26 pm

I know! I'll meet you on theopia and talk about it there! :lol:

EDIT: PM meh, and I'll wander over there when you got a topic set up.
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Unread postAuthor: SpudBlaster15 » Wed Mar 26, 2008 12:08 am

Lentamentalisk wrote:Do you have any suggestions as to how to "ball mill" if we dont have any specialty equipment?


Buy a $20 rock tumbler, and a few dollars worth of pennies to use as media. Pennies will not spark, and although they are lightweight, they still work decently as media. I milled my first batch of black powder for 6 hours using a 4" x 6" mill jar turning at 90 rpm on a homemade ball mill, and $10 worth of pennies as media. It burned twice as quickly as commercial black powder.
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Unread postAuthor: ammosmoke » Wed Mar 26, 2008 12:38 am

Quarters work better.... And they are still nonsparking. I believe nickels are also.
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Unread postAuthor: SpudBlaster15 » Wed Mar 26, 2008 12:52 am

Yeah, but you will need thousands of quarters to properly charge any mill jar larger than a soda can, and I for one do not want to spend hundreds of dollars on coins when I could simply purchase a suitable quantity of brass round stock for less than $50 and have more efficient milling media.
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Unread postAuthor: ammosmoke » Wed Mar 26, 2008 1:14 am

Uhhh lol I was talking about the rock tumbler! Hell no, I would never use that many quarters! I would just buy some lead weights or get some media from skylighter, pyrocreations, or united nuclear.
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Unread postAuthor: SpudBlaster15 » Wed Mar 26, 2008 1:48 am

Oh, ok. Still...

A rough estimate puts the dimensions of the rock tumbler jar at 4" diameter and 4" length.

Volume = (2)<sup>2</sup>*pi*(4)
Volume = 50ci

A proper charge is 1/4 full of powder and 1/2 full of media.

Media Volume = 50/2 = 25ci

My measurements put a quarter at roughly 0.95" in diameter, and roughly 0.07" thick. A quarter is a cylinder, so;

Quarter Volume = (0.95)<sup>2</sup>*pi*0.07
Quarter Volume = 0.2ci

So, you will need about 25/0.2 = 125 quarters to properly charge the rock tumbler, which equates to about $31. Thats a bit steep when $11 worth of pennies will yield the same volume, as the expense of a very slight decrease in milling efficiency.

Also, I'd advise against using lead media due to its toxicity. I've never used it, and I don't intend to.
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Unread postAuthor: ammosmoke » Wed Mar 26, 2008 2:18 am

Wha? Man I never fill mine that full! I put like $7.00 of quarters and called it good lol!

EDIT: About the lead, you know how stars are made right?
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Unread postAuthor: SpudBlaster15 » Wed Mar 26, 2008 3:54 am

How long does it take you to properly mill BP using 28 quarters in a rock tumbler?

I don't use a star roller, I cut my stars, so no lead is involved.
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Unread postAuthor: MaxuS the 2nd » Wed Mar 26, 2008 2:24 pm

This is what happens when you get it right..

Please ignore my funny little run and my mum. I did this over 3 years ago, I've grown up and grown a beard since then. :D

http://video.google.co.uk/videoplay?docid=4379935835438322758

Oh, I forgot to mention that if you use large mesh KNO3, the reaction will be slower, and yet produce much more smoke, watch the video.
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Unread postAuthor: ammosmoke » Wed Mar 26, 2008 7:18 pm

I have only made smoke comp with it so far, and I don't really know how long to properly grind bp with it. I have a homemade mill, I'm really impatient, so I only mixed for about an hour, because my undersized motor started smoking! :lol: Until I get a better one, I'm not doing much...

EDIT: BTW, there is a giant old thread on this here...

http://www.spudfiles.com/forums/smokebombs-t1604.html

Just thought I would let you know! A lot of questions about the rules are answered there too. :wink:
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Unread postAuthor: locksmith » Wed Mar 26, 2008 9:41 pm

Im here to tell you your formula will look nothing like the picture you posted.I have many color smoke dies and it takes a different oxidizer and fuel to make colored smoke.Potasium chlorate/lactose powder and sodium bicarb + organic dye.although potasium nitrate and sugar does make great white smoke
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Unread postAuthor: ammosmoke » Thu Mar 27, 2008 6:45 pm

Well, skylighter has some great stuff here... :wink:

http://skylighter.com/mall/kits.asp
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Unread postAuthor: Lentamentalisk » Thu Mar 27, 2008 10:55 pm

God Damn! how much stuff were you burning there maxus? Too bad it was so windy, that would have been insanely thick if it wasn't blowing so hard.

btw, where would I get large mesh KNO<sub>3</sub>? any suggestions of garden supplies etc. that would have that?
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Unread postAuthor: dungdue0 » Thu Mar 27, 2008 11:42 pm

I made a thread a while back on how to amek them, I think they talked about colored mixtures in there.

Stump Remover is 99% potassium nitrate.
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