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barrel into copper coax

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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barrel into copper coax

Unread postAuthor: daniel323 » Thu Mar 19, 2009 10:20 pm

Hey guys

I'm building a copper coax. The chamber is 1" by 2' and the barrel 1/2" by 3'
anyways does anyone know the best way to make the barrel go into the chamber?
would i have to modify a copper reducer, and if so how would i do that?

Thanks
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Unread postAuthor: Gippeto » Thu Mar 19, 2009 10:31 pm

That'll work.

Just use a dremel, or a small round file to get rid of the lip in the reducer, allowing your barrel to go all the way through.

Some cutting fluid will help keep your file from "filling up", if you go that route.

Or use a copper bushing. They can be found in the plumbing isle as well.
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Unread postAuthor: daniel323 » Thu Mar 19, 2009 10:32 pm

so would the bushing also have a lip in it?

thanks
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Unread postAuthor: Gippeto » Thu Mar 19, 2009 10:34 pm

No, they don't have any obstructions.
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Unread postAuthor: daniel323 » Thu Mar 19, 2009 10:37 pm

so the barrel would just slide right through and then i could solder it?
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Unread postAuthor: Gippeto » Thu Mar 19, 2009 10:40 pm

That's correct.
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Unread postAuthor: daniel323 » Thu Mar 19, 2009 10:41 pm

oaky, thanks for the help
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