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Mitch's new poly piston gun

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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Mitch's new poly piston gun

Unread postAuthor: Mitchza89 » Mon Jun 18, 2007 12:18 am

Hey guys this is my new cannon. It's pretty much made out of poly except for the barrel ect. Urgh I'd tell ya alot more but I had just completely typed up everything about this gun, had it all ready so I pushed submit...and it said page can't be displayed so I lost everything :evil: :evil: :evil: . I know it's only got a ball valve and a coke bottle chamber but I have a heavily modded sprinker valve and a 32mm chamber all ready. I've just gotta get a few parts to attatch em.

If ya got any Q's, drop us a line.

Mitch.
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Unread postAuthor: rna_duelers » Mon Jun 18, 2007 12:55 am

Nice,does the piston have much room between it and the nipple?Does much air come out the pilot?

Ohh one thing...Go The Coke Bottle!
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Unread postAuthor: Mitchza89 » Mon Jun 18, 2007 12:59 am

its a pretty snug fit but it could be a lot better. i just attatched the sprinker valve and now its not working at all. so not happy...
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Unread postAuthor: chaos » Mon Jun 18, 2007 1:18 am

Nice Mitch, very very nice. its simple guns like these that ar much fun.

that being said, wats the problem with the gun? does it not seal or not open when you pilot it?
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Unread postAuthor: Mitchza89 » Mon Jun 18, 2007 1:23 am

it worked beautifully with the ball valve but now with the spirnker valve, it doesnt work at all. thats why i need a lighter spring. that could be why the piston doesnt go back.
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Unread postAuthor: Pyro Ninja » Mon Jun 18, 2007 1:28 am

Do you know what pressure poly pipe is rated to....because i want to know.......btw i can't see the pictures

I searched....and it said that

..Rural Poly should not be connected to Mains Pressure..
but
..PN12.5 metric poly pipe can be legally connected to mains pressure..
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Last edited by Pyro Ninja on Mon Jun 18, 2007 1:36 am, edited 1 time in total.
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Unread postAuthor: Mitchza89 » Mon Jun 18, 2007 1:35 am

poly is rated to 1600kpa so it can take a hell of alot of pressure. i dont know why ya cant see the pics...everyone else can :?
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Unread postAuthor: Pyro Ninja » Mon Jun 18, 2007 1:45 am

oh cool......the picture thing happens to about 60% of the pictures posted....really really annoying :x
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