Piston Help

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.
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Blitz
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Tue Apr 15, 2008 5:26 pm

If it's feasable, I'd build another identical piston, just without that dart tip.
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Sergeant Dotson
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Tue Apr 15, 2008 7:09 pm

OK,ok. I did some tests and I came out with this. I can either make it seal and not move back, or make it move back and not seal. I just made some new designs and none of them did both. But now I made one out of 3/4 inch PVC and felt. On one side I made a plug of hot glue, and on the other side I will put in a custom molded silicone piece. I made the mold just now and filled it with silicone. It should be dry sometime this week. But once it is dry I can trim it to my liking. :twisted:

I will post pics soon of my new piston. It is very sturdy and should hold up well. I just hope that it seals well. I tested it and it does slide back very nice though. :)
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