Help With Piston

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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thetyzonator
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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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Move the drill press to somewhere warmer?
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Gippeto
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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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Saskatchewan! and true... but it will not be above 0C for quite awhile sadly...
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Mr.Sandman
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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.
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jackssmirkingrevenge
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thetyzonator wrote:Anyone have any ideas?
Yes.

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

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hectmarr wrote:You have to make many weapons, because this field is long and short life
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