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11mm Automatic Ball Bearing QEV gun

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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11mm Automatic Ball Bearing QEV gun

Unread postAuthor: Cosmic Muffin » Fri Sep 30, 2011 4:09 am

Hey guys this is my build log on my new 11mm Automatic Ball Bearing QEV gun. the plans were posted in the discussion forum here > http://www.spudfiles.com/forums/full-auto-qev-and-relieve-valve-bullpup-with-co2-update-t23329.html still a way to go. needs the bolt made for the blow forward bolt design, im going to construct that with epoxy and a large bolt. the magazine tube runs paralell to the barrel. and its going to have a spring feeding the ball bearings to the bolt mech. at the moment im still waiting to finish casting the whole trigger setup. i had to modify the gun by epoxying new 1/4in threads over the existing because none of my parts would fit -.-

ive since added a new chamber which is about 3 times the size shown here. although i havent used the full automatic functionality yet. i have connected a small chamber to the hose and pumped it up till the valve pops. it sounds mad.:twisted: similar to a .22. cant wait to get it working fully.

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just the other side of the setup.
with that nice squishy insulation tube.
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the business bits
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hope you like (:

UPDATE (:

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layed out on the perspex sheet im in the process of cutting for the body. as you can see the designe has changed for the time being. it has a "cloud" chamber (the pvc) instead of the blow forward bolt idea i had, it rips up though. i wouldnt want to get shot by it thats for sure. sounds like a mini gun at 140psi ><
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Last edited by Cosmic Muffin on Mon Oct 31, 2011 3:23 am, edited 2 times in total.
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Unread postAuthor: pneumaticcannons » Fri Sep 30, 2011 5:40 am

wow that looks great! good luck getting the plowback to work
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Unread postAuthor: Cosmic Muffin » Fri Sep 30, 2011 6:16 am

Cheers mate :) yeh shouldnt be too hard. May need a bit of tweaking but I'll get it sorted ;) I can't wait to get this full auto!
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Unread postAuthor: Zeus » Fri Sep 30, 2011 7:04 am

Somehow I missed your previous thread. Good work and glad to have a member back. Even better that you're Australian.
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/sarcasm, /hyperbole
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Unread postAuthor: Cosmic Muffin » Fri Sep 30, 2011 10:21 am

Haha seems everyone did :p thanks. Haha yeh true blue
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Unread postAuthor: Cosmic Muffin » Mon Oct 03, 2011 9:21 am

finally got some epoxy work done. general gun layout for anyone watching the thread.. cue tumbleweed

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