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piston cannon question

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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piston cannon question

Unread postAuthor: zeigs spud » Fri Sep 29, 2006 9:36 pm

when i make my piston cannon how do i get my barrel strait and keep it strait in the cannon? Do i need supors in the cannon its self? Also, eventualy with the piston pushing against the barrel soo much wouldn't it eventualy knock it out of place or forward and break the seal around the barrel?

plz help?
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Unread postAuthor: SpudStuff » Fri Sep 29, 2006 11:07 pm

Yse a modified bushing or reducer. You can cut off the outter ring so air can flow past.
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Unread postAuthor: Atlantis » Sat Sep 30, 2006 12:54 am

If you can manage it, just put a long bolt through the barrel near the breech end, and either let it rest on the chamber wall or screw it through the wall, 2nd option would need that sealing tape though.
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