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New design for the B&A marble rifle

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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Will it work?

Poll ended at Thu Apr 05, 2007 10:35 pm

YES
2
67%
No
1
33%
 
Total votes : 3
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New design for the B&A marble rifle

Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 10:35 pm

I just finished drawing up the plans for the final B&A pneumatic marble rifle. Instead of using a 1/4 in. ball valve hooked to the chamber, I'm using a modified sprinkler valve near the barrel with a 1/4 ball valve for release. A 1/4 in elbow is tapped directly into the sprinkler valve then a 1/4 X 2 in. nipple is screwed into that, then the 1/4 in. ball valve is screwed into that. The air chamber is now 1 foot instead of 8 inches. But it is still made of 1 1/2 in. pvc though. It is still filled with a schroeder valve, but the valve is screwed into the end cap. Everything else is still 1/2 piping. ( The barrel is 3/4 though) It is now also breech loaded via 3/4 coupler. Feel free to express any questions or comments. I have gone over the design and it looks flawless, but tell me what you think.
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rifle 2.JPG
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rifle 2.JPG (24.64 KiB) Viewed 1096 times
Last edited by Acdcmonkey1991 on Sun Apr 01, 2007 8:35 am, edited 5 times in total.
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Unread postAuthor: chaos » Sat Mar 31, 2007 10:40 pm

looks alright man good luck wiv it, hope it works.
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Last edited by chaos on Sat Mar 31, 2007 11:06 pm, edited 1 time in total.
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Unread postAuthor: hi » Sat Mar 31, 2007 11:04 pm

I would suggest making the pipe from the sprinkler valve to the barrel also 3/4 inch because that will restict the flow a little to the 3/4 inch barrel. it will work the way you have it, but it will work better if you make it 3/4 inch instead of 1/2. other than that it looks good.

One thing you may want to, and that i would advise that you did, was put a piece of wood between the barreland chamber and put a hose clamp around it for support.
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Unread postAuthor: subterranean » Sat Mar 31, 2007 11:05 pm

nice drawing that will definatly work well. took my advice ehh. sryy dont mean to sound like a loser
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Unread postAuthor: Acdcmonkey1991 » Sat Mar 31, 2007 11:08 pm

I like the 3/4 in. and the wood idea
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Unread postAuthor: TwitchTheAussie » Sun Apr 01, 2007 12:16 am

I cant wait to see this finished. Sounds completely mad :twisted:
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Unread postAuthor: Acdcmonkey1991 » Sun Apr 01, 2007 8:24 am

I think I'll be able to finish it by next weekend
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