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My QEV copper cannon

Posted: Sat Mar 31, 2007 10:24 am
by spanerman
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555fps with a 12g potato slug that aprox 175j, what you think?

Posted: Sat Mar 31, 2007 10:28 am
by chaos
man thats pretty good, what pressure you run at?

i like the shape, shoot marbles.

Posted: Sat Mar 31, 2007 10:29 am
by spanerman
i shoot at 100psi and shoot bolts/sockets out of it

Posted: Sat Mar 31, 2007 10:33 am
by chaos
you could probably go a lot higher than that

Posted: Sat Mar 31, 2007 10:35 am
by pigion
Why did you put a ball valve behind the QEV on picture 3 and 4? ( at the exhaust side)

Posted: Sat Mar 31, 2007 10:39 am
by chaos
pigion wrote:Why did you put a ball valve behind the QEV on picture 3 and 4? ( at the exhaust side)
umm i believe that is actually what exhausts it.

Posted: Sat Mar 31, 2007 11:23 am
by sharpshooter
Thats more likely a safety. There would be now point in having a QEV if you still had to open that ball valve every time to actually fire. More of a "lets make sure i don't get shot in the face while loading kinda deal". It also probably has the benefit of keeping starch from gumming up the QEV.

Posted: Sat Mar 31, 2007 11:41 am
by spanerman
the ballvalve behind the QEV is the pilot, using a BV give much more poer over a blowgun. the one infron of the QEV is a saftey

Posted: Sat Mar 31, 2007 11:34 pm
by experament-u2
i like the long version it look sweet nice job on the soldering to

any chance of a video of it shooting?

Posted: Sun Apr 01, 2007 4:40 am
by spanerman
this is the short vesion at 60psi with a spud slug http://www.youtube.com/watch?v=U6HH3pAgB3w

and here is a video of them both

http://www.youtube.com/watch?v=M4FfH4UzTiU

Posted: Sun Apr 01, 2007 5:28 am
by experament-u2
it looks good

(nice music btw CKY rock)

Posted: Sun Apr 01, 2007 6:51 am
by TwitchTheAussie
Its mad I like it much.

Posted: Sun Apr 01, 2007 9:22 am
by iPaintball
Nice gun, good soldering job. One question though, where'd you get that qev?

Posted: Sun Apr 01, 2007 9:27 am
by jackssmirkingrevenge
experament-u2 wrote:it looks good

(nice music btw CKY rock)
Er... It's machine head (davidian) and rage against the machine (renegades of funk) :P

edit: actually pistol grip pump from the same album would have been more appropriate :wink:

Posted: Sun Apr 01, 2007 9:41 am
by spanerman
yeah no CKY,btw i love davidian so much my band is called shotgun blast. the valve is availble from http://www.uksgc.co.uk, i am getting 28mm chamber/barrel tomoro 1000mm chamber and 1400mm barrel i will be using C size batterys as ammo, and with my running pressure of 8kpa it should own :shock: :P :twisted: