Will This Work?
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jackssmirkingrevenge
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Nope.oneocim wrote:I don't know if there is other type of slide valve but with the common available one with that design you will be pushing the trigger than pull it. You should move the valve near the qev to have forward direction, except you want to add more mechanical to the trigger.
edit: Yep.
Last edited by jackssmirkingrevenge on Wed Nov 20, 2013 11:10 am, edited 1 time in total.
hectmarr wrote:You have to make many weapons, because this field is long and short life
Nope to your nope. The design as Andrew_J has it has the sleeve valve mounted back to front (either that or every time it's pulled, it'll vent the entire air supply tank rather than fire. (And in answer to Andrew_J's question, no, they can only be correctly mounted one way around).johnnyssparklyradish wrote:Nope.
However, moving it up and around the U-joint would let it be mounted the right way around so that pulling it (rather than pushing it) would vent the pilot.
Also, that'd reduce the pilot volume.
Does that thing kinda look like a big cat to you?
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jackssmirkingrevenge
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Quite right, mea cuplaWankakok wrote:Nope to your nope. The design as Andrew_J has it has the sleeve valve mounted back to front (either that or every time it's pulled, it'll vent the entire air supply tank rather than fire. (And in answer to Andrew_J's question, no, they can only be correctly mounted one way around).
hectmarr wrote:You have to make many weapons, because this field is long and short life
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Brian the brain
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Don't listen to the newbies... 
You can orientate the slidevalve the other way...if you approach it differently.
Modify your QEV ( tiny equalisation hole and spring) and it will stay closed while pressure comes in from the chamber ( reservoir) side rather than the factory version wich will only accept pilot-side filling.
Put the slidevalve on the pilotside, in reverse, but cap off the other end.
When you slide the valve now, pressure drops in the pilot area and fills the slidevalve and capped off end.
It will pilot the QEV ...and the QEV will reseal as pressure equalises.
Then, slide the slide of the slidevalve ( ) back and the stored pressure is released.
The volume in the slidevalve and cap is now ready to be repressurised from the pilot area again.
This method also means you're not dumping all the pressure from the reservoir even after the projectile has left the barrel.
Ideally, the "capped"volume would be adjustable to where shotpower is maximised while waste is minimalised.
You can orientate the slidevalve the other way...if you approach it differently.
Modify your QEV ( tiny equalisation hole and spring) and it will stay closed while pressure comes in from the chamber ( reservoir) side rather than the factory version wich will only accept pilot-side filling.
Put the slidevalve on the pilotside, in reverse, but cap off the other end.
When you slide the valve now, pressure drops in the pilot area and fills the slidevalve and capped off end.
It will pilot the QEV ...and the QEV will reseal as pressure equalises.
Then, slide the slide of the slidevalve (
) back and the stored pressure is released.The volume in the slidevalve and cap is now ready to be repressurised from the pilot area again.
This method also means you're not dumping all the pressure from the reservoir even after the projectile has left the barrel.
Ideally, the "capped"volume would be adjustable to where shotpower is maximised while waste is minimalised.
Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!
Can't ask for a better compliment!!
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!
Can't ask for a better compliment!!
No. To regulate pressure, the spring needs to be opposed by downstream rather than upstream pressure.
This is an animation I did some years ago to demonstrate the basic principle:
This is an animation I did some years ago to demonstrate the basic principle:
Does that thing kinda look like a big cat to you?
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jackssmirkingrevenge
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That's how most regulators function.Andrew_J wrote:So you tighten the spring for higher pressure?
hectmarr wrote:You have to make many weapons, because this field is long and short life