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My piston, hope it helps you!

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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My piston, hope it helps you!

Unread postAuthor: PneuJose » Sun Apr 22, 2007 12:17 am

Hey guys, all i got to say is that i was searching my dads hardware store trying to find something that would fit on 1.5inch pipe for a 1.5n piston valve and i luckily found a Karman Rubber Vibro Insulator. Pics

ill post my gun after some shots ^^ to get damage pics.
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Attachments
vibro insulator.gif
well the piston has a conical shape, i chose the conical one because its a little bit lighter than the cylindrical ones, the outer diameter is 1.5inch (exact!) and when it reaches 30psi starts to fill the chamber.
vibro insulator.gif (5.41 KiB) Viewed 581 times
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Unread postAuthor: hi » Sun Apr 22, 2007 12:21 am

this fits in the pipe, or it seals against the pipe. eather way, its a good find.
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: PneuJose » Sun Apr 22, 2007 12:24 am

fits in the pipe, AND seal my barrel realy good cause its made of neoprene
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Unread postAuthor: hi » Sun Apr 22, 2007 12:26 am

how much do they cost? what is your barrel? is it commonly availible?
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: PneuJose » Sun Apr 22, 2007 12:34 am

i dont know the cost....sorry i just took it was laying around. I dont think it would be commonly availble, i think u should order it from the internet. my barrel is 1'' pvc.
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Unread postAuthor: rad14701 » Sun Apr 22, 2007 9:14 am

I was thinking about trying a similar hardware store gadget for sealing... I had also considered using a tapered faucet washer for a 1/2 inch copper barrel...
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Unread postAuthor: noname » Sun Apr 22, 2007 1:30 pm

Looks like a plug for a chemistry flask, those would work too if you sealed the hole in the middle.
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Unread postAuthor: pyromaniac » Sun Apr 22, 2007 1:34 pm

it kinda looks like that with a sealed hole already.
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:pottytrain3:
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