Copper QEV

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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drac
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Recently my QEV arrived in the mail (courtesy of Mr.Plow) and I got right to building. I had bought all the parts beforehand so I could finish it the day I got it.
The barell is 48 inches of ½ pipe and the chamber is 36 inches of 1 inch pipe. I have also a dual chamber made of 2 sections of 1 inch pipe, each being 24 inches in length. It is exhausted by a ¼ inch high-flow blowgun and is filled by a ¼ inch ball valve. It's pretty fast shooting to, I can get off 20-30 shots a minute.

Pics can be found at http://coppercannon.mypicgallery.com/ .

The QEV is a ¼ ported Schrader Bellows QEV.
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drac
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No replies yet? :(
Nobody?
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fred_roux
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looks nice drac...nice welding.... :wink:

if you want more comments about your canon post it on spudtech forum
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drac
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That's what I did, it got about 12 replies there. I like for everyone to see my creations. :twisted:
Not to sound like an ass or anything, but the proper term is soldering, although I bet you could weld copper. :oops:
spudshot
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i dont think you could, its too thin, you could braze copper though
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airpress
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Copper can't you weld with a mig/mag/stick welder,because its to tin and copper melt a 1800°.Steel melts a higher temperatures
You can only solder it and braze it.
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