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will my piston work?

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 my piston work?

Unread postAuthor: lukemc » Wed Apr 11, 2007 12:44 pm

i have to go to the hard ware store to get the rest of my supplys for my coaxail gun but i built the piston and need your input on if it will work.

it is based on btb's piston http://www.spudfiles.com/forums/viewtopic.php?t=6214&

this is what is like

the tapered disks hopefully act as a one way valuve
Image

the neopreme barrel sealing surface
Image

the piston on top of 2" pvc (my chamber size)
Image

a diagram of it
Image

the friction seems pretty high but i have never done a piston befor so i dont know what to look for
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Unread postAuthor: leeeeshad » Wed Apr 11, 2007 12:57 pm

that wont hold a lot of pressur, the rubber should seal the piston, not form most of it
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Unread postAuthor: lukemc » Wed Apr 11, 2007 1:04 pm

did you look at the link brian said his worked...
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Unread postAuthor: zeigs spud » Wed Apr 11, 2007 2:59 pm

hmm looks good but i sujest a nice even cut for the circl bits of ruber, with them like that air could leak, and the piston could catch the chamber sides. lookes great tho!
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