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.25 cal Coax Rifle

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: Hawkeye » Sun Feb 21, 2010 3:36 pm

It's going to happen. :D
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Unread postAuthor: maverik94 » Sun Feb 21, 2010 3:50 pm

It's going to happen.

Yes, it is possible.... :D :D :)
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Unread postAuthor: IMagius » Wed Feb 24, 2010 5:55 pm

maverik94 wrote:
One thought from the Mechanic in me ... Since you are using brake line for the barrel, why not use a flare tool and a brake line coupler for attaching the barrel to the chamber? It would elimiate the need for the Epoxy and remove a "weakness" from the design.

The only problem is:
But then the barrel won't extend back into the chamber.

I have the entire flaring/cutting kit, and I thought about this, but As far as I know, there is no simple way to get around this. :(


From looking at the assorted "bits and pieces" in my parts bin, it shouldn't be hard at all ... Here's a pic that may help explain what I had in mind.

Red is your Chamber
Grey are the 2 Brake Lines - 1 for Barrel & 1 for penetration into the Chamber)
Blue is a double male coupler (drilled out to fit the O.D. of the line & the angle of the Flare)
Teal is a standard double female coupler/splice - drilled out to match the I.D. of the line)
Gold is a standard Brake fitting.

All of the joints would use the North American standard "Double Flare" instead fo the newer Euro "Bubble Flare".

Don't know what your design was or if that would even work for you, but it's what I had in mind.
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Unread postAuthor: maverik94 » Wed Feb 24, 2010 6:27 pm

Yeah, i suppose it could work. I have a better, non-coaxial design that will be better than coaxial. Just as powerful, but can be breechloading. Anyway, thanks for the input!
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"You can't be friends with anyone if you aren't friends with yourself."
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Give me a lever long enough, and a fulcrum on which to place it and I shall move the world.
–Archimedes
Defeat is always momentary.
–Carl Denham

Current Project: None, I'm in Spudremission.
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