Barrel Sealing Valve (log)

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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Counterstriker
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Ok, So I am constructing a Barrel Sealing Valve and thought I will make a log and ask all my questions in this one topic. So far I am good with questions, But this is my piston design
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Piston done.jpg
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bigbob12345
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my questions are
1.what is that rubber washer going to be sitting on top of?
2.not really a question but with a bolt that large it will weigh a lot
3.what are you going to be using for the bumper?

edit:one more question
1.5in pvc is not a very good fit inside 2in so are you going to wrap tape around it or what?
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pizlo
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Be ready for some hard work, they tend to take a lot of tweaking, I'm still working on mine :p and not to be rude but I bet all of the questions you can come up with have been answered a few dosen times in the past few months.
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bigbob12345
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lol
I finished my most recent piston valve in about ten minutes and it didnt take much tweaking.
bluerussetboy
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What is your question and why didn't you search???? Puhleeeze tell me you searched and there were no answers to your non existent question.
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bigbob12345
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calm down its just a build log :?
sjog
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I got a nice piston from c19o a few months ago.
1 1/2" w/o-rings. It was tight in the 2" pipe so I honed the pipe till it slid easily. Made a good valve , copied his design . Worked great first time I set it up. http://i179.photobucket.com/albums/w303 ... CT2004.jpg
http://i179.photobucket.com/albums/w303 ... CT2003.jpg
http://i179.photobucket.com/albums/w303 ... CT2002.jpg
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Counterstriker
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bluerussetboy wrote:What is your question and why didn't you search???? Puhleeeze tell me you searched and there were no answers to your non existent question.
Dude Stfu :evil: It's a build log moron..
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