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Ball Pistol

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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Unread postAuthor: spudshot » Sat Aug 27, 2005 9:44 pm

i believe he's from britain, so the measurements are different, the marbles i have fit in 1/2" sch 40
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Unread postAuthor: deathtodeer666 » Mon Sep 12, 2005 12:33 am

nice gun clean sweet design I love the interchangible barrels and blowgun assembly o sorry dident know there was another page the I made this and I freeze paint balls in 3/4 inch sch40 pvc pipe there cheaper than marbles in 1/2
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Unread postAuthor: Cronic » Tue Oct 25, 2005 1:58 pm

Very nice gun. Mini but damn it can go through German. I wonder if it can go through my Math book, doubt it the formulas are really hard in there. ( Hope someone got that "joke"). Anyway You have to refill your gun after each shot or...?
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Unread postAuthor: boilingleadbath » Tue Oct 25, 2005 2:23 pm

Yes, he'll have to fill it after every shot. Only rarely does someone make a gun that can shoot multiple times on a tank of air... I only remember 2. (vogt patterns and BBMGs don't count!)
It's mostly a complexity issue, although muzzle velocity also takes a hit.
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Unread postAuthor: Ballad_Black » Tue Oct 25, 2005 2:25 pm

I'd say soCronic. The air gets pushed out through the barrel and im pretty sure that'd leave the chamber empty or almost that way. But personally I feel I should'nt post here, due to the fact that I don't know how that gun works. I just don't understand it at this point.
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Unread postAuthor: Cronic » Tue Oct 25, 2005 2:47 pm

Well you can attach a container to it and let the fireing chamber fill for each shot and then stop the air flow from the air container to the firing chamber and then shoot out the projectile as normal. And when you want to fire again you release the air flow from the container into the fireing chamber to get enough air for another shot. Would that work?
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Unread postAuthor: boilingleadbath » Wed Oct 26, 2005 3:22 pm

That's the normal proces, buddy...
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Unread postAuthor: Giggle » Sat Nov 26, 2005 7:22 pm

hey this looks mad could someone tell me what the bits appart from pvc are like the handel and the valve that stores the air?. could u also tell me were i can get them?
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Unread postAuthor: boilingleadbath » Sat Nov 26, 2005 9:30 pm

<stabs self in gut repetedly>
It's a co-axial diaphram valve... the spudtech forums has some explaniations of them, you could check the wiki, or you could see the "punisher valve" localy.
The handle is a blowgun, being used as a pilot valve. These things can be purchased for about 5$+S&H On ebay. Personaly, I got mine at Home Depot for about 6$... but I'v heard they come cheaper.
Check the wiki for any terms you don't recognise.
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Unread postAuthor: Giggle » Sat Dec 03, 2005 3:11 am

im just getting into phenumatic cannons and i really want to try and make urs. ive made combustions before but i think phenumatics aare really cool. can u please tell me what the bits in this cannon are? :) cheers
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Unread postAuthor: taterjim » Sat Dec 03, 2005 11:25 am

You said that marbles were a perfect fit and I beleive you are desctibing it as a 3/4" barrel. I have probablly shot 1000 or more marbles over the summer and none of them would be a good fit in a 3/4" barrel.
Most of the marbles I get are a tight fit in a 1/2" barrel and a loose fit in a 3/4 " so I have to drill the barrel . In some other posts I have seen copper tubing used for marbles. With marbles in my pocket I went to the hardware and none of those will work either unless you use something much larger than the marble like the 3/4" and it is not even a close fit.
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Unread postAuthor: Giggle » Thu Dec 08, 2005 5:23 am

i dont quite understand how this cannon can work? dont u need a valve that seperates the barrel from the chamber????????
could some one please explain how this cannon works???
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Unread postAuthor: Cronic » Thu Dec 08, 2005 3:59 pm

Check out the wiki, searh for piston...
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Unread postAuthor: Andrew52 » Mon Apr 10, 2006 11:17 am

makes sense because you kick it with your feet hints the name FOOTball
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Unread postAuthor: A-98 » Mon May 08, 2006 10:08 am

could you post the specs please
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