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Chopper tee piston problem

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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Chopper tee piston problem

Unread postAuthor: ckman » Wed Oct 15, 2008 11:33 pm

hey guys so i am making a 3/4 barrel sealing valve and it is all going to be made out of copper but the only problem is that the tee i am trying to house the piston in has blocks running the whole gap then they stop so the piston cant move across to the other side and i tried taking it out with a dremel but it barely did any thing

so heres my question do they sell tees with no little blocks in them

that might have seemed like a dumb question but im new wit piston valves and copper
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Unread postAuthor: Gippeto » Thu Oct 16, 2008 12:04 am

I had the same problem. I reduced the diameter of the sealing end of the piston. Works fine.

http://www.spudfiles.com/forums/download,id,8951.html
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Unread postAuthor: mach 10 » Thu Oct 16, 2008 11:36 am

I would not put the piston in the tee but in a pipe coming from the back of the tee
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Unread postAuthor: ckman » Thu Oct 16, 2008 5:48 pm

oh ok thanks guys
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Unread postAuthor: VH_man » Thu Oct 16, 2008 5:59 pm

If you can, find a FTG adapter for the back of your tee. Its what i did in my gun, and it makes the overall look much better than if you hadnt used it.

an FTG adapter fits perfectly inside the fitting... its cool stuff.
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