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| surfbum |
Posted: 04/13/2007 22:23 PM Post subject: |
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 Specialist

Joined: 03 Apr 2007 Posts: 45 95.39 Spud Bux
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| if i use a sleeve valve, it says when its closed it vents pressure to the atmosphere, so wouldn't it just empty the CO2 tank to the atmosphere if i close the valve? |
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| keep_it_real |
Posted: 04/13/2007 22:25 PM Post subject: |
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Captain

Joined: 23 Dec 2006 Posts: 325 513.73 Spud Bux
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| It works like this: when its closed, it vents the piston valve side but blocks the co2 side and when its open it lets co2 through into the chamber. |
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| surfbum |
Posted: 04/13/2007 22:32 PM Post subject: |
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 Specialist

Joined: 03 Apr 2007 Posts: 45 95.39 Spud Bux
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| ok so when the slide valve moved, it would seal the CO2 side and fire the cannon at the same time, correct? |
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| keep_it_real |
Posted: 04/13/2007 22:39 PM Post subject: |
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Captain

Joined: 23 Dec 2006 Posts: 325 513.73 Spud Bux
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yup thats right.
Also about the change you made for the qev. It's not going to look very good or be structurally strong with three elbows like that. If you think you can do it, make a piston valve. If not maybe a sprinkler valve. |
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| goathunter |
Posted: 04/14/2007 11:15 AM Post subject: |
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The avatarless one

Joined: 15 Feb 2007 Posts: 686 503.32 Spud Bux
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| If you have access to a machine shop and CNC stuff try building an alias MKX launcher look alike.I haven't been able to take one apart but I believe they are a coaxial.They seem easy to build.I would try, but lack a verticall mill to cut the base.http://www.bp-usa.com/weaponry.htm.Talk to someone at your paintball field.The local scenario team may have one that you can look at. |
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| surfbum |
Posted: 04/14/2007 11:28 AM Post subject: |
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 Specialist

Joined: 03 Apr 2007 Posts: 45 95.39 Spud Bux
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| goathunter wrote: | | If you have access to a machine shop and CNC stuff try building an alias MKX launcher look alike.I haven't been able to take one apart but I believe they are a coaxial.They seem easy to build.I would try, but lack a verticall mill to cut the base.http://www.bp-usa.com/weaponry.htm.Talk to someone at your paintball field.The local scenario team may have one that you can look at. |
thats actually exactly what i am trying to do, unfortunately there are no diagrams and no one i know has one, if you have an idea of how it works, would you mind posting up a diagram?
if i were to make the QEV set up i would put the whole think in a sleeve of Aluminum or something to strengthen it |
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| Orpackrat |
Posted: 04/14/2007 14:52 PM Post subject: |
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2nd Lieutenant

Joined: 19 Mar 2007 Posts: 236 35.67 Spud Bux
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| goathunter |
Posted: 04/14/2007 20:19 PM Post subject: |
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The avatarless one

Joined: 15 Feb 2007 Posts: 686 503.32 Spud Bux
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| Surfbum,I'm having trouble getting the paint document to post.I'll get it on the thread as soon as I can. Hey fellas how do I post a paint document?I know I sound like an idiot, oh well I can't figure out how to do it. |
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| goathunter |
Posted: 04/14/2007 21:14 PM Post subject: |
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The avatarless one

Joined: 15 Feb 2007 Posts: 686 503.32 Spud Bux
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| surfbum |
Posted: 04/15/2007 12:14 PM Post subject: |
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 Specialist

Joined: 03 Apr 2007 Posts: 45 95.39 Spud Bux
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so ive decided to do a coaxial
what is the best method to dump the the air behind the piston to fire the cannon? |
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| iPaintball |
Posted: 04/15/2007 12:48 PM Post subject: |
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 Colonel

Joined: 04 Mar 2007 Posts: 713 971.42 Spud Bux
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| It depends on the size. I suppose a blogun could be used for pistons under 3/4", ball valves for 3/4" to 1.5", and sprinkler valves and QEVs for anything over 1.5". |
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