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Simple Golfballer

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: frankrede » Mon Feb 04, 2008 8:41 pm

Maniac wrote:If you decided to sell it put a pop off valve in there too. With a gauge. Also where did you get your clear primer and glue.
I got the clear primer from ewings (ewings1.com) and the glue from Lowes
Yea, and a pop off valve is a must.
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Unread postAuthor: rde4321 » Mon Feb 11, 2008 10:33 pm

where did you get the golfball barrel
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Unread postAuthor: frankrede » Tue Feb 12, 2008 12:04 am

its 1.5" class 200 Sdr-21 pipe.
I got it from a irrigation supply store, its really cheap.
to find a store in your area
http://www.ewing1.com/general/ews_loc_locations.htm
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Unread postAuthor: pnematicrookie » Wed Feb 13, 2008 10:25 am

thats cool, what psi do you shoot it at?
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Unread postAuthor: frankrede » Wed Feb 13, 2008 7:40 pm

125-175 psi
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Unread postAuthor: bigbob12345 » Wed Feb 13, 2008 7:50 pm

175psi seems a bit much for sch40pvc to me but Nice gun.
I like extremely simple cannons If it is simple it doesnt mean it isnt powerful and reliable.
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Unread postAuthor: pnematicrookie » Wed Feb 13, 2008 7:52 pm

cool, me too...agreeing with bigbob12345, about the simple but powerful guns
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Unread postAuthor: frankrede » Wed Feb 13, 2008 9:27 pm

bigbob12345 wrote:175psi seems a bit much for sch40pvc to me but Nice gun.
I like extremely simple cannons If it is simple it doesnt mean it isnt powerful and reliable.
Yea, I know, its like the lottery, the chances are low of it blowing but theres still a chance.
The usual pressure is around 125 psi though
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Unread postAuthor: bigbob12345 » Wed Feb 13, 2008 9:53 pm

175psi would put a lot of wear not only on the pipe but especially on the sprinkler valve. Depending on the brand I think the diaphram rips at around 190-250psi and i think the watermasters rip at about 200psi so you are putting a lot of stress on it. Of couse you not in any danger if the diaphram rips all it will do is automaticly fire the gun and force you to spend another ten bucks on another valve which would be annoying.
I would suggest keeping below 150psi.
175psi is not like OMG you are going to die but it is a little risky as you stated. I keep pvc below 120psi because you never know when you have a faulty joint or pipe and maybey you have a scratch in the pipe that would cause it to rupture.
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Unread postAuthor: frankrede » Wed Feb 13, 2008 10:06 pm

Yea I realized that
It was only a few times at a friends house
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Unread postAuthor: sjog » Wed Feb 13, 2008 10:32 pm

How do you guys get to 175-200psi range , I mean how hard is it to hand pump to that pressure?
Shop or portable compressors 110 t0 135psi, in my experience, max.
Does any one have a compressor that puts out more than,say,125psi?
I mean into the chamber.
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Unread postAuthor: frankrede » Wed Feb 13, 2008 10:46 pm

My friend has a 175 psi air compressor.
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Unread postAuthor: bigbob12345 » Wed Feb 13, 2008 10:48 pm

the DeWalt compressors go to 200psi but they are very expensive and the Kolbolt compressors ussually go to 155psi but they are expensive for what they are(bad quality).
Most compressor just do 100-125psi which is generaly enough.
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Unread postAuthor: rde4321 » Mon Feb 18, 2008 1:04 am

Where did you get your GB barrel from
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Unread postAuthor: Carlman » Mon Feb 18, 2008 8:48 am

rde4321 wrote:Where did you get your GB barrel from


frankrede wrote:its 1.5" class 200 Sdr-21 pipe.
I got it from a irrigation supply store, its really cheap.
to find a store in your area
http://www.ewing1.com/general/ews_loc_locations.htm


:roll:

what kind of FPS are you getting with this gun?
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