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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Ragnarok
- Captain
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- Joined: Tue Dec 19, 2006 8:23 am
- Location: The UK
Wed Apr 29, 2009 8:08 am
Technician1002 wrote:By nature, a QEV is an avalanche type valve. Expecting it to suddenly close before the chamber has mostly emptied is a pipe dream.
It's entirely possible. It's been done.
Take almost any of Brian the Brain's recent cannons. His Brass T-Bolt, Lupara, Bad to the bone... which all use hammer valve piloted QEVs for multiple shots from the same chamber.
Hotwired has also demonstrated a similar effect via a different method of partially venting the pilot volume. He can also get multiple shots from the same chamber.
I do
generally have some idea of what I'm talking about.
Does that thing kinda look like a big cat to you?
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far_cry
- Specialist 3
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- Joined: Wed Aug 20, 2008 3:59 pm
Wed Apr 29, 2009 8:28 am
but i think Brian the Brain's canon cant get the same power if he pilot the full chamber.into the barrel for one shoot
??
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Ragnarok
- Captain
- Posts: 5401
- Joined: Tue Dec 19, 2006 8:23 am
- Location: The UK
Wed Apr 29, 2009 8:32 am
No, it doesn't get quite the same overall power - but he does get more shots out of one fill.
It all depends on what you're looking for in any given cannon.
Does that thing kinda look like a big cat to you?
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far_cry
- Specialist 3
- Posts: 317
- Joined: Wed Aug 20, 2008 3:59 pm
Wed Apr 29, 2009 8:40 am
Ragnarok wrote:No, it doesn't get quite the same overall power - but he does get more shots out of one fill.
It all depends on what you're looking for in any given cannon.
will i think this metod is good for small bore canon with realy high pressure
but that evrey one and his choice
