Idea for an automatic cannon

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<(-_-)>
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First of, since this is my first post, Hi!

Anyway, I have made quite a few potato cannons and I have always wanted an automatic one. The only method to make an automatic that I can think of is to have a "hopper" below the barrel filled with ammo that operates on bernoulli's principle. for those of you who dont remember this from 3rd grade, its what makes airplanes stay up (try a google search). I was wondering if you guys think this would work or if anyone has done this yet? Thanks!
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jackssmirkingrevenge
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You mean something like this? If so, it's how most home built BB machineguns work, we even have a whole section dedicated to them ;)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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<(-_-)>
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Exactly like that but shooting golf balls or something. Thanks!
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Tom
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Then you would need a very big cloud or vortex, maybe it's a bit smarter to shoot some smaller ammo :D .
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<(-_-)>
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Actualy, slightly different. This dosesn't work on the Venturi Effect.
Last edited by <(-_-)> on Sun Oct 28, 2007 12:47 pm, edited 1 time in total.
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jackssmirkingrevenge
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<_> wrote:Exactly like that but shooting golf balls or something. Thanks!
It's been done with marbles, golf balls and possibly tennis balls though i'm not sure if that was just a pipe dream or actually made.

For usch a device you'll need one hell of a propellant gas supply, which is why most people are happy to stick to 0.177" caliber ;)
hectmarr wrote:You have to make many weapons, because this field is long and short life
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veginator
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For golf balls you would probably need a scuba tank regulated to 1000 psi but if you could do it that might be more impressive than that stainless steel combustion.
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DYI
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DR did it with a large air compressor at 150 or so psi, so it's certainly within the realm of possibility.
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<(-_-)>
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HeHe... I just happen to have a 40 gallon compressor in the back of my truck...
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BC Pneumatics
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<(-_-)>
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I am going to try it for my next project. It will just be a paintball pistol to try it out and if it works I will make one that shoot golf balls.
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spudgunnerwryyyyy
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You should tap a hose adapter after the valve and run a section of tubing to under the hopper to get things moving. Try ur idea.
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