Compact Jackass Combustion

Boom! The classic potato gun harnesses the combustion of flammable vapor. Show us your combustion spud gun and discuss fuels, ratios, safety, ignition systems, tools, and more.
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frankrede
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Sat Apr 14, 2007 10:33 pm

This cannon was built off a 15$ budget and the only parts I have before hand was the 2" pipe, 3/4" sch-80 and the 1/2" sch 40
and those can all be bought cheap too.

The chamber is 2" sch-40. The barrel is 3/4 sch-80 for paintballs and 1'2 sch-40 for marshmallows.
It has a modified lantern lighter for ignition and a schrader valve for butane.btw, does anyone know what butane work with schrader valves?

<a href="http://photobucket.com" target="_blank"><img src="http://i30.photobucket.com/albums/c325/ ... 7_1832.jpg" border="0" alt="Photo Sharing and Video Hosting at Photobucket"></a>

Click here for the rest of the pics
http://s30.photobucket.com/albums/c325/ ... ombustion/
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Killjoy
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Sat Apr 14, 2007 11:56 pm

Nice little cannon you got there. And I'm pretty sure butane will work with schrader valves.
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pyromaniac
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Sun Apr 15, 2007 10:08 am

I like it compact, simple.
:pottytrain3:
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frankrede
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Sun Apr 15, 2007 11:39 am

I shot it this morning and there was a bang and a giant cloud of smoke from the barrel, it was like a musket!
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KRN
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Thu Jul 17, 2008 7:33 pm

You can switch out the barrels, cool:D
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MrCrowley
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Thu Jul 17, 2008 7:48 pm

Gathering inspiration for a combustion of your own? :)
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frankrede
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Thu Jul 17, 2008 8:05 pm

MrCrowley wrote:Gathering inspiration for a combustion of your own? :)
Indeed she is;)
Current project: Afghanistan deployment
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n-strike
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Thu Jul 17, 2008 8:18 pm

Where do you get Sch. 80 PVC pipe from?
What a waste of 300 spud bux.
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KRN
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Thu Jul 17, 2008 8:21 pm

He bought it from a specialty pipe supply dealer:D
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starman
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Thu Jul 17, 2008 8:56 pm

frankrede wrote:
MrCrowley wrote:Gathering inspiration for a combustion of your own? :)
Indeed she is;)
If she hasn't seen thisyet, maybe it could serve as some inspiration.

Maybe you guys could team up and go for an advanced propane model of some sort.

Oh and ...kudos on the jackass model. Exchangable barrel is my favorite feature. Why did you name it what you did?
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VH_man
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Thu Jul 17, 2008 9:13 pm

do the paintballs exit the barrell unharmed? i had a problem with a combustion of mine a while back where the paintballs would explode in the barrell.

and name of said pipe supply dealer? :D

BTW... who makes up these emoticons? lol this one caught my eye..... :violent2:
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frankrede
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Thu Jul 17, 2008 11:05 pm

VH_man wrote:do the paintballs exit the barrell unharmed? i had a problem with a combustion of mine a while back where the paintballs would explode in the barrell.

and name of said pipe supply dealer? :D

BTW... who makes up these emoticons? lol this one caught my eye..... :violent2:
ewing1.com'
and the paintballs exited fine.

no wadding either

@starman, the cannon was built for the purposes of having a cannon that could be used with friends to mess with and not worry about someone causing too much damage.
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starman
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Thu Jul 17, 2008 11:29 pm

frankrede wrote: @starman, the cannon was built for the purposes of having a cannon that could be used with friends to mess with and not worry about someone causing too much damage.
I was thinking more about your build challenge...another spray n pray is nary a challenge at all. You can always install short barrels on there to keep the power and possible damage down.
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TwitchTheAussie
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Fri Jul 18, 2008 12:20 am

Simple and efficient. I like it :P
Raise your horns if you love metal.
spudgunning is like sex, once you've tasted, you can't wait til next time.
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KRN
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Fri Jul 18, 2008 12:34 am

Me too:D




awesome.!
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