PNEUMATIC GUN WITH VALVE QEV

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.
keks2033
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Mon Nov 19, 2018 2:50 am

Made a gun of 40 mm caliber, used a piston valve. The gun works well at pressures up to 20 atm, no longer possible, because the rubber on the piston is torn.
[youtube][/youtube]
here is an approximate diagram of the valve. Used a coarse water filter.
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hectmarr
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Mon Nov 19, 2018 3:12 pm

I like it for the simple. Good job! Perhaps the air pump built into the launcher is missed :roll:
Ideas don't make holes. The weapons yes! ;)
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jackssmirkingrevenge
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Tue Nov 20, 2018 5:27 am

Nice work! This configuration is rarely used, I think I've only ever seen it done by clide on this forum, what he called the "straight-through valve":

[youtube][/youtube]

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hectmarr wrote:You have to make many weapons, because this field is long and short life
keks2033
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Tue Nov 20, 2018 10:20 am

wow, this is a gun!The first time I see this!
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hectmarr
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Tue Nov 20, 2018 4:35 pm

Very good!!! This weapon serves to silence the noisy speakers of the stupid of the other street! (joke) :roll: :D
Ideas don't make holes. The weapons yes! ;)
keks2033
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Sat May 16, 2020 2:12 pm

A few days ago, I managed to make and test a piston valve with a caliber of 40 mm. I managed to make an exit into the barrel with a diameter of 14 mm. I pumped 50 atm into a cannon with a homemade pump.
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