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My biggest yet (barrel sealer)

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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My biggest yet (barrel sealer)

Unread postAuthor: noname » Mon Mar 12, 2007 7:44 pm

I upgraded <a href="http://www.spudfiles.com/forums/viewtopic.php?t=2320&">this</a> POS a couple times. I made a barrel sealing piston valve for it, and then it looked like <a href="http://www.spudfiles.com/uploader/uploadFiles/newgun1.jpg">this.</a> Now it shot a lot better, but it was ugly and uncomfortable. I also added about a foot and a half to the chamber, which increases the power even more. This thing can easily blast taters all the way down my street, which is 280 yards long, from where I shoot. GGDT says it shoot around 450 fps with a potatoes slug as the projectile. I turned the valve around and put it even with the chamber, now I can also shoot it as a "stationary gun" type thing. This is the biggest gun I've made, because now I have a compressor. I'll get some damage pics up sometime, I also plan on upgrading the pilot from a 1/2" ball valve to a 1" sprinkler.
<a href="http://www.spudfiles.com/uploader/uploadFiles/purplepistongun1.jpg">1</a>
<a href="http://www.spudfiles.com/uploader/uploadFiles/purplepistongun2.jpg">2</a>
<a href="http://www.spudfiles.com/uploader/uploadFiles/purplepistongun3.jpg">3</a>
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Unread postAuthor: imjustpk » Mon Mar 12, 2007 8:47 pm

i like the purple barrel, color of royalty
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Unread postAuthor: Fnord » Mon Mar 12, 2007 8:52 pm

Thats pvc painted black not abs right?
It looks kinda hard to hold but it must work well to get 280 yds.
Put up some damage pics if you can :)
What pressure do you run it at, btw?
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Unread postAuthor: noname » Mon Mar 12, 2007 9:08 pm

The purple isn't the color of royalty, it's an assload of purple primer. :lol:
_Fnord, I've been spudgunning over 3 years, it's PVC. If you didn't know (evidently not), ABS is very shiny, and has white writing on it. I just hold it with my right hand on the barrel threads and my left triggering the ball valve. I use it at 80-100 psi usually.
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Unread postAuthor: imablackskater » Tue Mar 13, 2007 2:24 pm

nice job painting with primer i couldnt tell it wasnt paint and awesome flat black overall i give it an 8
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Unread postAuthor: PVC Arsenal 17 » Tue Mar 13, 2007 2:35 pm

The configuration is odd but cool nonetheless. Nice work.
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Unread postAuthor: Fnord » Tue Mar 13, 2007 7:18 pm

If you didn't know (evidently not), ABS is very shiny, and has white writing on it.

I just asked because the only abs I have is incredibly old and dull and looks like your pvc :) No I've never actually had new shiny abs cause my hardware store doesnt sell it.
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Unread postAuthor: lukemc » Thu Mar 15, 2007 1:33 pm

nice color combo looks good
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