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Gas Sampling Cylinder Paintball Rifle

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: rna_duelers » Fri Jun 30, 2006 4:37 am

You no what tetsuo315, im so impressed with that gun and i have alot of spud bux lying around(well i have a small amount compared to some)...so here have about.... 300 and buy yourself a nice signature. And hurry up on the new pics! Must see really cool gun the 2nd.!!!
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Unread postAuthor: Tetsuo315 » Sat Aug 26, 2006 3:44 pm

Ok GGDT Was pretty close with this gun. GGDT quoted the FPS @ 812. I Chronographed an average velocity of 785-793 FPS. Now thats more like it. Although 800 FPS would be nice. I will need to get the chamber to a higher pressure.
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Unread postAuthor: Bluetooth » Sat Aug 26, 2006 4:07 pm

Im with demon, ive never build a combustion (unless you count a pill bottle and a pen tube).
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Unread postAuthor: MrCrowley » Sat Aug 26, 2006 5:23 pm

how good do the PBs fit in your barrel as theyre .68cal and your barrel is 3/4"
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Unread postAuthor: Tetsuo315 » Sat Aug 26, 2006 8:13 pm

Yes they fit the barrel. I use 3/4" CPVC.
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Unread postAuthor: MrCrowley » Sat Aug 26, 2006 8:35 pm

whats the I.D of 3/4" CPVC?
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Unread postAuthor: singularity » Sat Aug 26, 2006 10:19 pm

.72 i think

and now to add more words....
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be sure to check out my <a href="http://www.spudfiles.com/forums/ak-style-airsoft-vortex-gun-t10959.html">AK Styled Vortex Gun</a> and my <a href="http://www.spudfiles.com/forums/at-4-t9627.html">AT-4 Rocket</a>

upcoming projects... finalized clip fed BBMG and ball point pen sniper
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Unread postAuthor: MrCrowley » Sun Aug 27, 2006 12:42 am

ok so a PB has a 1.2mm or .04" gap
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Unread postAuthor: noname » Sun Aug 27, 2006 12:45 pm

That puts 1/2" SDR 13.5 at a better fit with .69 ID doesn't it now?
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Unread postAuthor: SpudStuff » Sun Aug 27, 2006 1:37 pm

sleve inside 3/4" sdr 35
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Unread postAuthor: schmanman » Sun Aug 27, 2006 1:41 pm

Is it possible to machene an adaptor with the correct threads for a actual paint ball gun aftermarket barrel on one side,and,say, 1 inch or 3/4 inch NPT threads on the other?
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Unread postAuthor: MrCrowley » Sun Aug 27, 2006 2:10 pm

paintball barrels cost $80 here,but i spose it would work, you can get hand held pipe threaders as well.i was thinking about using a proper PB barrel but as i said before its $80NZD for 12"
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Unread postAuthor: noname » Sun Aug 27, 2006 10:54 pm

This guy who owns a machine shop saw my guns and said I could go in and weld steel cannons for free and stuff, I'll bring in my paintball gun barrel and see about machining threads for a paintball gun on PVC.
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Unread postAuthor: schmanman » Mon Aug 28, 2006 7:45 am

yeah, that would be cool. screw cpvc, right !
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Unread postAuthor: noname » Mon Aug 28, 2006 10:04 am

38 inches is the longest piece of SDR 13.5 I could get without it bending, so guess how long my paintball gun barrel will be if I can put threads on. :D
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