Help With Piston

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
thetyzonator
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Sat Jan 08, 2011 4:56 pm

Hello everyone! I am in the middle of making a barrel sealing piston valve cannon and have come to a bit of a bump... I need to find a piston that will fit in a 4in sch80 tee.. I have a circle cutter but it is around -20 outside and the drill press that I am using does not like the cold... Anyone have any ideas? Anything will be appreciated!

Edited by jrrdw, title.
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Technician1002
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Sat Jan 08, 2011 5:37 pm

Move the drill press to somewhere warmer?
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Gippeto
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Sat Jan 08, 2011 6:02 pm

Wait for a warmer day...you're not going to be using a pvc canon for a while anyway.

Which province?
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thetyzonator
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Sat Jan 08, 2011 6:06 pm

Saskatchewan! and true... but it will not be above 0C for quite awhile sadly...
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Mr.Sandman
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Sat Jan 08, 2011 6:18 pm

thetyzonator wrote:Saskatchewan! and true... but it will not be above 0C for quite awhile sadly...
Well, Nothing you can do about mother nature, I'm with the others you should wait for it to get warmer then continue construction. Why not make a smaller metal cannon that you can build and shoot while waiting for it to warm back up? Or you could also get a portable heater and put it next to the Drill Press while it runs.
Yeah, it's that important.
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jackssmirkingrevenge
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Sun Jan 09, 2011 12:01 am

thetyzonator wrote:Anyone have any ideas?
Yes.

For such a relatively large chamber, the built-up approach is best:

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