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Project Golf Cannon

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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Unread postAuthor: Brian the brain » 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??
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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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Unread postAuthor: Moonbogg » 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.
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Unread postAuthor: Sam@UoN » Thu Oct 15, 2009 5:51 pm

Image

Like this? :shock:
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Unread postAuthor: Technician1002 » Sat Oct 17, 2009 12:05 am

Any updates on a production design?
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Unread postAuthor: Sam@UoN » 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
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Unread postAuthor: Sam@UoN » 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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Unread postAuthor: Sam@UoN » Tue Oct 20, 2009 4:19 am

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

http://www.youtube.com/watch?v=M8Hvz4h6Fek

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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Unread postAuthor: Technician1002 » 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?
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Unread postAuthor: Sam@UoN » Tue Oct 20, 2009 9:58 am

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