SGA Golf ball Gun (2" Piston), 400yards!

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
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MrCrowley
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Yeah I did try water, wasn't all that bad actually recoil wise, screwed my piston up. I think it did something to the lube and it stopped working, took it out and it was fine physically.
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elitesniper
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probabley dryed up the lube what kind of lube are you using?
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MrCrowley
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Plumbers lube.
bennyt92
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thats sooo awsome man
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frogy
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If you can get some Lithium Soap\Grease or some good Silicon based paintball gun lube you should be able to keep this thing in perfect working condition...

My last BST had a removable end cap, do I could relube\replace pistons if they stopped sealing or became sticky... When I first Installed the piston I used Smart Parts "Sleek" Silicon lube, and it hasn't dried out since then (years ago)...


I love the gun though... I need some more golf ball barrels :)
-FrOgY-

I wish people would stop needing a better signature!
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bigbob12345
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Wow I love the new paint job.
nabu92
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When you open the ball valve, doesn't air from the chamber leak out of there? And does air go around the back of the piston to get into the chamber? I just looked at the animation and I'm a little confused. I'm plannning on building a similar gun tormorrow. :)[/youtube]
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elitesniper
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The air leaks out of the pilot chamber yes, thats what makes the piston move back.
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MrCrowley
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Yeah, i'd hold off on the piston valve until you understand them a bit more, it sucks wasting $30 of PVC fittings.

What animation did you look at? This <A HREF="http://www.spudfiles.com/forums/how-to- ... ml">one</a> or this <A HREF="http://www.spudfiles.com/forums/piston- ... ml">one</a>?
nabu92
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I looked at the 1st one before. I just looked at the 2nd one and that answered all of my questions. Thanks, I've been looking for that for a few days now.
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daberno123
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Well now that this topic has been pulled up again i'd like to say how much i really like this gun. I especially like the configuration of the stock and the valve placement. I might build a similar one with a 2.5" porting piston to shoot tennis balls instead of gof balls.

Great gun :)
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MrCrowley
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Thanks, it brings me the most joy out of all my cannons. :)
brother361
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hey i got i question about the end cap near your piston is that drilled out and a brushing screwed in or what is it
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MrCrowley
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No, it's glued to a piece of pipe that's also glued into the tee, this is what the piston moves in.
brother361
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oh ok u made it
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