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MrCrowleys GB cannon, Built by me, Update: Fixeded

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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Unread postAuthor: Northir » Wed Sep 16, 2009 2:39 am

anyways i put the old piston back in for now until i can find the lightest toughest best piston, that someone can make, not that HDPE ive been lookin into different kinds of foam, epoxy and other crap that people can mix up at home, will post them in a new thread when i find something that works well

lets try not to break more good cannons though eh?
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Unread postAuthor: psycix » Wed Sep 16, 2009 4:20 am

You can extend the barrel into the tee so the piston is behind the hole.

On high-performance launchers, this may cause some flow restriction.
Not that it is a bad thing or so, you can still have a very powerful launcher, its just to squeeze out those few extra joules.
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