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Copper QEV

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Copper QEV

Unread postAuthor: drac » Mon May 30, 2005 9:26 am

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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Unread postAuthor: drac » Tue Jun 07, 2005 7:03 am

No replies yet? :(
Nobody?
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Unread postAuthor: fred_roux » Tue Jun 07, 2005 6:25 pm

looks nice drac...nice welding.... :wink:

if you want more comments about your canon post it on spudtech forum
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Unread postAuthor: drac » Tue Jun 07, 2005 7:07 pm

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:
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Unread postAuthor: spudshot » Wed Jun 08, 2005 7:34 am

i dont think you could, its too thin, you could braze copper though
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Unread postAuthor: airpress » Wed Jun 08, 2005 10:45 am

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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