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Piston Failure Possibility?

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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Unread postAuthor: MrCrowley » Fri Dec 21, 2007 9:19 pm

Well seeing as I couldn't have anything touch the side of the end cap as it has to be glued onto a piece of pipe, I just got a metal coupler and threaded that on until it was right up against the back of the end cap.

This does two things:

1) Stops the piston from hitting the nipple while transfering most of the energy through the coupler and into the end cap

2) Acts as a lock nut preventing the nipple coming out.

It also takes up a fair bit of pilot volume which is always good if you're JSR :wink:
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