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New spud is it worthy?

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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New spud is it worthy?

Unread postAuthor: 9mmguy » Wed Feb 15, 2012 9:47 pm

Tell me what you think!
i have been working on this for a bit now the valve body is brass and is a piston valve.have had it up to 300psi with my fridgy fireing marble size ammo does vary good have more thing to do to it.

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Unread postAuthor: warhead052 » Wed Feb 15, 2012 10:35 pm

Wow, nice! What sort of valve is the trigger?
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Unread postAuthor: 9mmguy » Wed Feb 15, 2012 10:51 pm

I work on semi truck it is the drain for the air tanks to get the water out of the system works good on my gun
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Unread postAuthor: jackssmirkingrevenge » Thu Feb 16, 2012 1:04 am

Nice to see some metal, love the look :D now let's see it in action!
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Unread postAuthor: 9mmguy » Thu Feb 16, 2012 9:22 pm

I will have time to do video Friday will get it up as I do it need to find ammo that is more even marbles I have are random in size see what I can come up with at work.
All comments are welcome
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Unread postAuthor: 9mmguy » Sun Feb 19, 2012 11:38 pm

http://youtu.be/l_UoNHC9W4k
Shooting with a Marble @ 300psi

http://youtu.be/e7npHPFZx4o
Shooting with a marble @ 300psi

http://youtu.be/d5mL1kKBUJo
Shooting with a AA battery @ 350psi

http://youtu.be/DO1PPghmmgM
Shooting with a AA battery @400psi

http://youtu.be/qyeegOg0qzM
Shooting with a AA battery @400psi
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Unread postAuthor: 9mmguy » Sun Feb 19, 2012 11:42 pm

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1/2 Inch Concrete board
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Unread postAuthor: MRR » Mon Feb 20, 2012 6:01 am

I have watched all the videos and the shots seem somewhat inconsistent in power. Do you use some kind of wadding before you load the projectile (you said that the size of the marbles vary)?
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Unread postAuthor: evanmcorleytv » Mon Feb 20, 2012 9:07 am

MRR wrote:I have watched all the videos and the shots seem somewhat inconsistent in power. Do you use some kind of wadding before you load the projectile (you said that the size of the marbles vary)?


Yeah.. I noticed, and wondered that too.. Do you use wadding for the marbles, and batteries?
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Unread postAuthor: 9mmguy » Mon Feb 20, 2012 9:10 am

No I don't put any wadding in gut the marble have been making my own ammo just trying to get some fires in test the piston
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Unread postAuthor: 9mmguy » Tue Feb 21, 2012 7:48 pm

New Ammo

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Unread postAuthor: killerbanjo » Tue Feb 21, 2012 8:14 pm

Wow nice, i like the look of the long slug ones :P
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Unread postAuthor: 9mmguy » Tue Feb 21, 2012 8:22 pm

Only thing is 52grams 32grams on the small one
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Unread postAuthor: 9mmguy » Tue Feb 21, 2012 8:31 pm

Have made some all the way down to 10grams even drilled out the rear off them to cut the grams down
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Unread postAuthor: jackssmirkingrevenge » Wed Feb 22, 2012 12:48 am

9mmguy wrote:Have made some all the way down to 10grams even drilled out the rear off them to cut the grams down


... and to keep them stable in flight ;) looking forward to seeing these in action.
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