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Copper piston cannon

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Copper piston cannon

Unread postAuthor: SpudStuff » Sun Jul 23, 2006 6:05 pm

This is my copper piston cannon. I have taken it up to 500 PSI with CO2.

Chamber--3/4" x 68" 30 CI
Barrel -- 1/2" x 70" 13.3 CI
Valve-- Copper Bolt Piston
Special Features-- Made of Thick Walled Type L copper pipe. I have taken it up to 500 PSI with a CO2 Bottle off of a paintball gun.
The Second Picture is a dumbass kid from my school.

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Unread postAuthor: pyrogeek » Sun Jul 23, 2006 6:17 pm

Holy cow, 500 PSI. If anything goes wrong you will probably end up with a chunk of copper in your side.
I'd really like to see some destruction shots from this gun. It sounds like it would be really powerful.
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Unread postAuthor: SpudStuff » Sun Jul 23, 2006 6:49 pm

copper dosn't shatter it spluts. if it was to break it would most likely split open on oneside of the chamber more photos to come
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Unread postAuthor: djt » Sun Jul 23, 2006 6:50 pm

woa 500psi seems like your pushin it a little too much if you ask me. but besides that i bet that thing destroys anything you shoot it at. id like to see some damage pics also
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Unread postAuthor: SpudStuff » Sun Jul 23, 2006 8:10 pm

im waiting for my camera back. it shoots carrots through two lyers of drywall backtobach
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Unread postAuthor: WOW!! » Tue Jul 25, 2006 12:32 pm

SpudStuff wrote:im waiting for my camera back. it shoots carrots through two lyers of drywall backtobach


Frozen??
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Unread postAuthor: SpudStuff » Tue Jul 25, 2006 12:39 pm

no just baby peeled carrots
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Unread postAuthor: Shrimphead » Tue Jul 25, 2006 2:33 pm

What is your piston bumper made out of? I imagine that a piston slamming back with that kind of pressure could do some crazy damage to the gun itself.
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Unread postAuthor: SpudStuff » Tue Jul 25, 2006 2:36 pm

actually the bumper is a spare 1.8 rate shock spring off my traxxas revo rC car ~18 pound compression
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