Help with Cannon Tech

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
wanginvasion
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Sun Oct 01, 2006 12:18 am

Hi, this will be my first time building a pneumatic cannon, I am considering building a replica of a rifle, pump action for the first, however, I am very concerned about the valve system between the rifle barrel and the pump.

I have made some researches, and so far everyone has been using the gas to push the spring then release the shot? can anyone explain the mechanics behind that? Thanks.
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frankrede
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Sun Oct 01, 2006 12:42 am

Ok, WHat do you mean pump action?You mean you will have a hand pump?
What you need is a chamber,a valve,and a barrel.
The chamber is filled with pressure, the valve releases it pushing the projectile out the barrel.
Click on spudwiki at the top of teh site and it will explain everything to you.
Current project: Afghanistan deployment
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boilingleadbath
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Sun Oct 01, 2006 1:15 am

Go on over to spudtech, and search for "mini pump" (or just "pump") by the member "clide", including archives.
It should give you some ideas.
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