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BV150GBMG

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: DR » Mon Mar 19, 2007 10:50 pm

Any diaphragm/piston valve that is 1" or over should work just fine.
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DR
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Unread postAuthor: Brian the brain » Tue Mar 20, 2007 11:15 am

Nice to see you're no longer ignoring these forums.. and..nice avatar...You look prettier than I imagined.. :lol:



I hope you take the time to educate people( you'll need patience!!!), instead of torturing them with your sharp witty comments.Well..maybe just some...
Most are just kids.Ghetto is the look to go for here, however, there are some treasures hidden out here...

talking about treasure, I'd like your opinion on this: http://www.spudfiles.com/forums/viewtopic.php?t=6725&

I got tired of not being able to post pics up on Spudtech.
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Gun Freak wrote:
Oh my friggin god stop being so awesome, that thing is pure kick ass. Most innovative and creative pneumatic that the files have ever come by!

Can't ask for a better compliment!!
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Unread postAuthor: goathunter » Tue Mar 20, 2007 7:48 pm

Call it a stupid question, but if the gun is supposed to be automatic why do you use a sprinkler valve?It would seem that the sprinkler valve is just restricting airflow. Wouldn't a ball valve have been a better choice.Since the gun runs like a cloud BB gun, I would think that a maximized airflow would increase velocity and cycling rate.
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Unread postAuthor: noname » Thu Mar 22, 2007 5:59 pm

I'm also thinking of making one of these, but a small one to shoot marbles/paintballs. How many do you think it would shoot if it had, lets say a foot and a half of 3" PVC as the chamber and a 1" modified sprinkler? I'll build it, definitely, and maybe make the barrel detachable, so I can try different mag lengths.
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Unread postAuthor: frankrede » Thu Apr 26, 2007 4:52 pm

goathunter wrote:Call it a stupid question, but if the gun is supposed to be automatic why do you use a sprinkler valve?It would seem that the sprinkler valve is just restricting airflow. Wouldn't a ball valve have been a better choice.Since the gun runs like a cloud BB gun, I would think that a maximized airflow would increase velocity and cycling rate.

No.
A ball valve, could work for these purposes, but it all happens so quickly a ball valve wouldn't open quick enough.
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Current project: Afghanistan deployment
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