Copper pneumatic

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Postby Zorrowannabe9 » Sat Feb 10, 2007 5:56 pm

Copper Pneumatic cannon...needs a good name
Chamber - 36" x 1" copper pipe type L
Barrel - 50" x 3/4" copper pipe type L
Valve - 3/4" QEV, actuated by a 1/8" push button valve

It still needs more buffing/polishing. I also plan to add some wooden furniture to it for both looks and support. Any Questions or suggestions are appreciated.

<a href="http://img402.imageshack.us/my.php?image=img0317el7.jpg" target="_blank"><img src="http://img402.imageshack.us/img402/1161/img0317el7.th.jpg" border="0" alt="" /></a>
upside down
<br>
<a href="http://img407.imageshack.us/my.php?image=img0316yc4.jpg" target="_blank"><img src="http://img407.imageshack.us/img407/7164/img0316yc4.th.jpg" border="0" alt="" /></a>

<a href="http://img409.imageshack.us/my.php?image=img0324ju0.jpg" target="_blank"><img src="http://img409.imageshack.us/img409/2703/img0324ju0.th.jpg" border="0" alt="" /></a>

<a href="http://img263.imageshack.us/my.php?image=img0323kr3.jpg" target="_blank"><img src="http://img263.imageshack.us/img263/4830/img0323kr3.th.jpg" border="0" alt="Free Image Hosting at http://www.ImageShack.us" /></a>
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Postby hi » Sat Feb 10, 2007 6:09 pm

how does that valve compare to a modded sprinkler valve?
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Postby Mr.Plow » Sat Feb 10, 2007 6:35 pm

Looks great! You just need a nice grip for the pushbutton valve. By the way, where did you get the pushbutton valve? McMaster? eBay?

hi- A 3/4" QEV will outperform a 1" sprinkler valve.
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Postby Zorrowannabe9 » Sun Feb 11, 2007 12:48 am

I got the pushbutton from mcmaster, just search for them. Thanks for the praise. Ill do the drips, etc later.
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Postby brian the brain » Sun Feb 11, 2007 3:46 am

Could that pushbutton valve be turned into a hammer valve??
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Postby markfh11q » Sun Feb 11, 2007 8:09 am

Very nice. Don't worry about polishing the copper, though, until you've got some type of coating for it that'll keep it polished. I polished my copper cannon right after I made it, but it quickly tarnished and dulled again. Louisiana sucks for copper.

EDIT - being that you're effectively cleaning it when you polish with steel wool, you could do that and then use some sort of clear epoxy coat very nicely.
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Postby Zorrowannabe9 » Sun Feb 11, 2007 12:00 pm

Yup, its not shown in the pictures, but only 8" of the barrel is actually fully polished. I realized that I had nothing to coat it with after, so I stopped.

brain - ummm, maybe. Whats a hammer valve? (like in an airsoft gun?)
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Postby Hawkeye » Sun Feb 11, 2007 3:57 pm

I'm not sure I'd want to hammer something that is just a push button. It might not be up to that sort of abuse.
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Postby An Apple Pie » Sun Feb 11, 2007 5:46 pm

If I understood that correctly than you are either a very stupid person or you are joking.

I will prey for the second.
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Postby Hawkeye » Sun Feb 11, 2007 6:01 pm

I'm not sure how that could possibly be taken as stupid or joking unless you are teenager with a limited reading comprehension. The valve is designed to be pushed so rigging up something to strike it isn't likely a recipe for longevity. Perhaps you misinterpreted my use of the word hammer and thought I meant to strike it with a real hammer. You should perhaps learn how to read in a more broad sense, particularly when the word "hammer" in this context is well known.
By the way, what are you going to "prey" on?
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