Project Golf Cannon

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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Brian the brain
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Thu Oct 15, 2009 4:55 pm

Depends on what you're trying to do. I've got a 1.5" QEV on my golf ball gun.... I wish it was bigger.


But not the ( UK) piston type.
I don't need to explain to you what kind of a snake a "Floa Constrictor" is right??
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Moonbogg
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Thu Oct 15, 2009 5:17 pm

Brian the brain wrote:
Depends on what you're trying to do. I've got a 1.5" QEV on my golf ball gun.... I wish it was bigger.


But not the ( UK) piston type.
I don't need to explain to you what kind of a snake a "Floa Constrictor" is right??
I lost a cat to one of those. They are dangerous.
Sam@UoN
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Thu Oct 15, 2009 5:51 pm

Image

Like this? :shock:
Sam@UoN
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Sat Oct 17, 2009 5:44 am

I should have the pro/e models done either tonight or tommorow - i've found a 2" high pressure PVC TEE that should do nicely and some 2" - 1.5" reducing bushes so that would leave a cavity where the 1.5" piston seals...

Anyway I will post when they are ready - right now I'm being forced into bloody food shopping with the mrs!

Thanks for all your help thus far fellas
Sam@UoN
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Sun Oct 18, 2009 5:12 am

Will do a better job when i have more time tonight but here is a quick screen grab...
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Sam@UoN
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Tue Oct 20, 2009 4:19 am

here is a link to a part of a video that ive made



let me know if anyone can see anywhere for refinement

I should also say that whilst they are not modelled the is an extension spring between the bolt and pison and an end cap on the left with a damper screwed into it...
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Technician1002
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Tue Oct 20, 2009 4:29 am

Very nice. I like the animation. My only concern is the peak forces where you decelerate the piston. Do you have plans to absorb the kinetic energy of the piston in a safe manor?
Sam@UoN
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Tue Oct 20, 2009 9:58 am

Yeah a 60J spring damper assy - will work a treat
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