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| bobgengeskahn |
 Posted: 03/04/2010 1:40 AM Post subject: |
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Corporal
Joined: 23 Jul 2009
Posts: 73
259.19 Spud Bux
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ive been lurking for a while and have been looking into doing basically the same thing that you are....
I'm looking at running around 200 psi +/-, but im also not concerned with making it field legal all the time (i.e. I want to be able to go over 550fps if I want to). There was a thread (that i would post the link to, but I'm not on my computer atm so i dont have the bookmark) in which someone designed a piston valve that was self sealing when fired and had no air loss... I'll try to get back on when I have the chance and post a link or a pic, but operating at low psi, like you would have to with airsoft, air loss is a big deal and would slow down your rof and also waste air, thus shortening your play time on a tank.
I've been thinking that I'm going to go with some kind of hammer valve... im working out some of the design details before i post it up on the forum for some feedback...
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| CpTn_lAw |
| Posted: 03/04/2010 5:08 AM Post subject: |
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Your friendly scientist
Joined: 11 Sep 2005
Posts: 933
422.24 Spud Bux
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Well, for the speed limit, you can always chrono your gun while changing the regulator output, and make little white spots for each "xx" fps gained.
For airsoft , a hammer-valve is really the best i think. You won't waste air, you get the semi-auto easily.....
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| bobgengeskahn |
| Posted: 03/04/2010 15:51 PM Post subject: |
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Joined: 23 Jul 2009
Posts: 73
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| bobgengeskahn |
| Posted: 03/04/2010 16:42 PM Post subject: |
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Corporal
Joined: 23 Jul 2009
Posts: 73
259.19 Spud Bux
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anyways, ive had a slow morning so i got on paint... this is what ive basically decided on for my similar project... hope it helps...
| Description: |
| the larger spring in the back is a 1" spring and is housed in a normal sch40. PVC pipe. the over all larger pipe is a sch80 pvc/abs pipe. The psi rating on sch80 1.5" is about 300-400 psi, well over what i want to be operating at. this is a picture of the system at rest. |
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