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Aluminum breecher

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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Aluminum breecher

Unread postAuthor: locksmith » Mon Apr 30, 2007 2:50 pm

Well this is my polished aluminum breech loading marble gun.It also sports a muzzle loaded one inch copper barrel.All of the machine work was done by me.I built the tank out of 2"schedule 80 pipe with tig welded end caps.It has a toro 1"modded sprinkler valve .I also built the Trigger on the blow nozzle the stock one was tin so I machined this one out of aluminum.The barrel is polished conduit Pressed into that custom bored brass fitting and soldered.The breech was built on the lathe and has oring seals.It also has a o-ring groove on the inside to keep the marble from rolling out.I also built the one inch pellet and the one inch rocket on the lathe.It fires very well I rest the tank on my shoulder and site down the barrel.Well I hope you Like it.I have a twenty foot stick of sdr21 coming for a golf ball barrel But it didnt make it before the contest.
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Attachments
components.jpg
assembled.jpg
assembled.jpg (36.5 KiB) Viewed 721 times
breech.jpg
breech.jpg (32.43 KiB) Viewed 721 times
breech2.jpg
complete.jpg
complete2.jpg
pellet.jpg
pellet.jpg

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Unread postAuthor: pyromanic13 » Mon Apr 30, 2007 3:27 pm

VERY NICE

what pressure does it opperate at... if you made your own valve I would imagine you could get some pretty high pressures.
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Unread postAuthor: iknowmy3tables » Mon Apr 30, 2007 3:48 pm

A++ for shininess and fine machining
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Unread postAuthor: Specialist » Mon Apr 30, 2007 3:55 pm

yes i agree very shiny and nice use of different types of metals. and nice rocket you built for ammo.
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Unread postAuthor: super spuder » Mon Apr 30, 2007 4:27 pm

ohhhh shiny. that thing it sweet. how fast will it shoot a marble. love that rocket thing
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Unread postAuthor: locksmith » Mon Apr 30, 2007 4:39 pm

Shoots marbles threw 3/4 melomine(shelving)and shoots that aluminum pellet threw 3/4 plywood both at about15 yards.I want to buy a chrono but wife says no ulless I win the hundred in the contest but from what ive seen i probably dont stand a chance.Oh and I fire it at 140 psi.
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