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Pop off valve triggering

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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Pop off valve triggering

Unread postAuthor: wyz2285 » Wed Apr 23, 2014 6:38 am

I'm looking for a way to mechanically trigger a pop off valve. Make it full auto is easy, but semi is bothering me. I know I can somewhat make it semi by control the flow but I really want to make it pure mechanical and true semi.
Please help :oops:
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Re: Pop off valve triggering

Unread postAuthor: noname » Wed Apr 23, 2014 10:09 am

Most of them either have a keychain type ring and/or a hole that the ring passes through. I'm sure you can rig up a trigger system that simply pulls the valve open. Taking a couple steps down in technology, you can always pull the ring with your finger.
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Re: Pop off valve triggering

Unread postAuthor: wyz2285 » Wed Apr 23, 2014 12:25 pm

Not sure if you got my question :p
I'm "homemading" the pop off valve and I'm planing use a trigger to avoid it to trigger off by it self. So if I hold the trigger, it will go full auto. I want it a mechanism that will allow semi as well.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Re: Pop off valve triggering

Unread postAuthor: tigerblues28 » Wed Apr 23, 2014 1:00 pm

Look at blueprints of actual firearm sears. I'm sure a blowback and sear could be made easily, especially with your skills and tool and such. I hope this doesn't go against any rules. I don't mean anything besides the sear mech.

Nick
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Re: Pop off valve triggering

Unread postAuthor: wyz2285 » Wed Apr 23, 2014 1:02 pm

Good idea, I could just reverse the trigger mechanism. Thanks.
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CpTn_lAw wrote::D "yay, me wanna make big multishot pnoob with 1000 psi foot pump compressor using diamond as main material. Do you think wet bread make good sealant? " :D
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Re: Pop off valve triggering

Unread postAuthor: tigerblues28 » Wed Apr 23, 2014 1:03 pm

Yep, no problem dude! 8)
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