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hubbs 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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hubbs piston

Unread postAuthor: Spudblaster » Fri Sep 10, 2010 6:52 pm

I've been doing lots of research and I have been reading a lot about Hubb's design but can't find the tutorial anywhere, I went to his forum and still can't find it. Can someone post a link please or point me in the right direction?
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Unread postAuthor: clemsonguy1125 » Fri Sep 10, 2010 6:56 pm

Type hbb library in wiki and theres a link to download plans there
http://www.spudfiles.com/spud_wiki/inde ... bb_Library
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Unread postAuthor: Hubb » Sat Sep 11, 2010 4:09 am

That 2" piston valve is a really easy valve for someone just starting out with them, which is the primary reason I did that. I do recommend you upgrading when you can, however, since this piston (although it does function well) tends to be heavy. And make sure you have a decent bumper for it, as I busted mine on the first try.

My current piston is a modified version of the The Slayer Valve by origin unknown and I was able to net approximately a 50 fps increase and reduced felt recoil with it over the Hubb piston.
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Unread postAuthor: Gun Freak » Sat Sep 11, 2010 10:51 am

Hubb is right, that piston is extremely heavy. I use it, but I'd recommend using a spool design like the one Hubb linked to. It will be much lighter not to mention easier to build. Also, if you can, use nylong hardware.
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Unread postAuthor: Spudblaster » Sat Sep 11, 2010 11:45 pm

Thanks for the help guys
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