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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Lockednloaded
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Wed Dec 26, 2012 4:50 pm
Here's a little simple sprinkler valve cannon I made for a family friend. I spent zero dollars on, but I'm selling it for a nice profit.
Nothing really special: interchangeable barrels, pressure gauge, and a push-button trigger, but it's pretty nice for what it is.

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jackssmirkingrevenge
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Thu Dec 27, 2012 1:18 am
Nicely done

what did you use as an air chamber?
As this is a commercial venture though I would have included a 150 psi pop-off valve.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Lockednloaded
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Thu Dec 27, 2012 1:40 am
Thanks, its an aluminum fire extinguisher repurposed for my use
I have a spare pop-off i could mount on it, but I know that my buyer does not have access to any high pressure sources to overcharge it with
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jackssmirkingrevenge
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Thu Dec 27, 2012 1:44 am
A simple "do not exceed 150 psi" stencil would be a safe disclaimer, just in case

not that the tank would rupture, but that sprinkler valve could easily become a cloud of sharp plastic shards.
hectmarr wrote:You have to make many weapons, because this field is long and short life
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8tonsemi
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Thu Dec 27, 2012 2:00 pm
How did you attach the fire extinguisher? I have one and I want to use it for something like that. Thanks.
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Lockednloaded
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Thu Dec 27, 2012 5:12 pm
Good call JSR, I'll be sure to throw some warning labels on it before it leaves my hands.
@8ton, I just epoxied it into a 1" PVC male adaptor. It looks pretty clean and is great for low pressure, but I wouldn't recommend it for anything over 200psi
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