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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DYI
- First Sergeant 5


- Posts: 2862
- Joined: Sat Jul 07, 2007 8:18 pm
- Location: Here and there
Wed Mar 05, 2008 9:51 pm
That is actually a very good idea and would increase opening time quite a bit if you pull hard.
ill have to try that, simple but effective
That's what I did with my old steam guns to open the ball valve. Opening times weren't exactly blindingly fast, but they were less than 50 ms according to my camera. Better than usual, but a piston valve it ain't.
Speaking of steam guns, I may finally be getting around to making the big one that I promised you all about half a year ago

Spudfiles' resident expert on all things that sail through the air at improbable speeds, trailing an incandescent wake of ionized air, dissociated polymers and metal oxides.
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bigbob12345
- Staff Sergeant

- Posts: 1516
- Joined: Sat Dec 01, 2007 9:13 am
- Location: Mercer Island,Washington
Wed Mar 05, 2008 10:03 pm
Well 50ms is double the speed the average ball valve can open without the string so it should help quite a bit. As you said a piston valve or sprinkler will open faster and get much higher performance but if you have an old ball valve gun(like my second gun, I am not going to post it is too horribley made)that isnt worth adding a faster valve to it could give it a boost it velocity.
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OuchProgramme
- Specialist 3

- Posts: 371
- Joined: Sat Jan 12, 2008 7:30 pm
Thu Mar 06, 2008 12:15 am
DYI wrote:That is actually a very good idea and would increase opening time quite a bit if you pull hard.
ill have to try that, simple but effective
That's what I did with my old steam guns to open the ball valve. Opening times weren't exactly blindingly fast, but they were less than 50 ms according to my camera. Better than usual, but a piston valve it ain't.
Speaking of steam guns, I may finally be getting around to making the big one that I promised you all about half a year ago

Easy one: Buy a steam ship.
Add a barrel
Charge.
Fire.
Boom.