Looking for a good gun to build

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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Bluetooth
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Sun Jan 07, 2007 5:27 pm

He's making his first gun with a sprinkler valve.
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Claybob86
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Sun Jan 07, 2007 5:56 pm

^^ is that a bad thing?

btw, neither lowes or home depot had a sprinkler valve. so i ended up getting a 3/4" ball valve.
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Bluetooth
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Sun Jan 07, 2007 6:03 pm

No, it's not bad but most people don't make their first gun out of metal. Come to think of it most people don't make metal guns at all.
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Claybob86
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Sun Jan 07, 2007 6:09 pm

i wasnt going to use metal....

hey bluetooth, if your on AOL or AIM, shoot me an IM, my sn is ctr2004
garrettee
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Mon Jan 08, 2007 4:59 pm

Hey Claybob, what part of Ky you from? I'm from Bullitt co. And I just bought a 3\4" Rainbird sprinkler valve from lowes. There located in the plumbing , irrigation section. And if you buy one, there are very easy modding directions in the construction materials forum. Good luck.
squeaks
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Mon Jan 08, 2007 5:14 pm

Okay, your big problem is that you're shopping at lowes. Lowes and home depot have nothing plumbing wise. You need to go to a local plumbing store. I live here in cedar city where the population of the whole county is 50,000 and we have 2 plumbing stores here in town. I'm almost certain there is one near you that can get you what you need.
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Claybob86
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Mon Jan 08, 2007 8:05 pm

i decided not to build yesterday bc of lousy materials, boooo. I decided to order a Rain Bird 1" valve, heres a pic. Do you all think it will work alright?

http://www.rainbird.com/parts/images/th ... pg?id=2398
squeaks
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Mon Jan 08, 2007 10:12 pm

U-shaped sprinklers do work, especially with over under guns. I don't know how to modify a u-shaped valve to actuate pnuematically but frankrede here on this site does know how to. It improves performance immensely so I highly recommend you talk to him about it.
"Nine out of ten Americans agree that out of ten Americans one will always disagree with the other nine."
-Collin Mockery
Who's Line is it Anyway

Borrow money from a pessimist, he won't expect it back.
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Claybob86
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Mon Jan 08, 2007 10:21 pm

awesome, i hope to be picking this up tomorrow or weds and build this weekend! ill let you all know the outcome. I did a little research and found that a good c:b ratio for a pneumatic gun is 1.5:1. so how does a 36" long, 2" chamber, and a 42-45", 1.5" barrel sound?
squeaks
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Mon Jan 08, 2007 10:36 pm

sounds perfectly fine. Should work good. Best of luck to you and happy spudding.
"Nine out of ten Americans agree that out of ten Americans one will always disagree with the other nine."
-Collin Mockery
Who's Line is it Anyway

Borrow money from a pessimist, he won't expect it back.
cobast
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Sun Jan 21, 2007 4:07 am

Plus, if you have a tiny itty bitty compressor like mine then you can just let it sit while your compressor fills it up over the next 5-10 minutes.
My chamber is 4" by 5.5" and my little 12v compressor blows it up to 35psi in less than 10 seconds. I'ts ready to launch before i've loaded the tennis ball n the barrel.
Infernal2
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Sun Jan 21, 2007 3:02 pm

Metal is a pain in the ass for your first gun. At least, that's what everyone keeps telling me.
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