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3/4 piston

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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3/4 piston

Unread postAuthor: quiggly17 » Mon Jan 19, 2009 4:12 pm

i need to know whats the best way to make a piston for a 3/4 inch brass "T" im not getting a good seal with my current one. Also im not sure if its the spring being to strong or if im not testing it at a high enough pressure but i cant get the piston to seal the pilot valve and vent through the barrel. Any help or trouble shooting is greatly appreciated thanks
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Unread postAuthor: maggotman » Mon Jan 19, 2009 6:47 pm

make one out of nuts bolts rubber washers and you can titen the rubber ones till u get a nice fit
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Unread postAuthor: Cosmic Muffin » Mon Jan 19, 2009 8:21 pm

look at the home made QEV by "spike" on youtube.
its a good how to... if you can understand french :P
but i found the vid pretty good.
just check it out anyway
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Unread postAuthor: Sticky_Tape » Mon Jan 19, 2009 9:04 pm

This is a piston I made for a 3/4'' copper tee dunno anything about brass though. http://ca.youtube.com/watch?v=XjuY6Ao58C0
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You can tell how awesome a cannon is by the pressure used.
http://www.spudfiles.com/forums/high-pr ... 12803.html
xnt rnm ne z ahtbg
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