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T70 Pneumatic launcher

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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T70 Pneumatic launcher

Unread postAuthor: Mac/pistol man » Sat Nov 10, 2007 10:30 am

Hey guys,
I am planning on building something similar to this :
http://www.youtube.com/watch?v=lTVttNST2qU
And I am wondering how I could get a good firing mechanism to work on it.
I think that utilizes a microswitch like on a paintball gun, that leads to a electronic sprinkler valve. Am I correct?
Also, where could I get a 150psi electronic sprinkler valve?

thanks guys!
mac man
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Re: T70 Pneumatic launcher

Unread postAuthor: Tom » Sat Nov 10, 2007 11:12 am

Mac/pistol man wrote:Hey guys,
And I am wondering how I could get a good firing mechanism to work on it.
I think that utilizes a microswitch like on a paintball gun, that leads to a electronic sprinkler valve. Am I correct?

When you buy a sprinkler valve there's a so called solenoid valve screwt in it. That solenoid valve has two wires, connect the two wires to 3 9V batteries and the solenoid valve wil open. But the sprinkler valve will open faster if you mod the valve :!: .
GR.Tom
http://www.spudfiles.com/forums/pnematic-mod-for-rainbird-cp-100-sprinkler-valve-t10489.html
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Unread postAuthor: LikimysCrotchus5 » Sat Nov 10, 2007 2:01 pm

I like the design and the mods to make it like a real gun, but persoanally i think the performance sucks!! :roll: . If you build something similar to this, make sure its pretty powerful. My piston valve cannon does more than that at 100 psi. Maybe he didnt mod the valve. :?:
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Unread postAuthor: spudgunnerwryyyyy » Sat Nov 10, 2007 2:21 pm

Ok use a qev, they are very sensitive and can handle 150 but sometimes more. They are not electronic but they are very sensitive. They are essentially really nice prebuilt piston valves that are super durable andvery difficult to break.
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Unread postAuthor: MrCrowley » Sat Nov 10, 2007 3:31 pm

Gotta love that DWV Bell reducer on the cannon :wink: Don't make the same mistake
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