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Scorpion Class Platform.

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: joannaardway » Sun Oct 15, 2006 3:30 pm

At risk of sounding like an echo:

That is kick-ass!!!! I wish I had the ability and tools to do that sort of thing...

@ flinchy: A ten foot 3" chamber!!!! What beast will this be?
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Unread postAuthor: Boz » Sun Oct 15, 2006 4:56 pm

Also, the straps are flat kaki, and a ten foot 3" chamber is what is on my cannon, assuming your firing all 4 tanks :)

You will definatly need 2 - 1" sprinklers for the chamber, as the single valve is a bottle neck, although you can use a longer barrel to offset a single valve.

This is quite powerful, It launched a slug roughly 250 yards on just 2 tanks, and punctured a metal trash can with a filled plastic water bottle (these shots taken at around 100psi, using the 2" Devastator barrel). I have not fully tested the longer barrel yet.
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Unread postAuthor: Tshylea » Tue Oct 24, 2006 6:51 pm

How well does the silencer work? And are you losing any pressure out of the breech?
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Unread postAuthor: Recruit » Wed Oct 25, 2006 12:23 am

..........................that thing is .......the best cannon...I HAVE SEEN YET!!
man that thing is awesome
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Unread postAuthor: spud-tom » Sat Oct 28, 2006 10:35 pm

hey how did you construct the breech loading system
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Unread postAuthor: Boz » Wed Nov 01, 2006 6:01 am

That is not a silencer, its more of a "shroud" The barrel continues all the way through it. There is a slight leak at the breech but its minimal, I have not seen a preformance decrease from it, at lease not one that I would care about. Like I have said it shot roughly 250 yards.

How did I construct the breech? Ill try to get some pics up. But it did involve cutting oring grooves.
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Unread postAuthor: Boz » Mon Dec 25, 2006 11:52 pm

Happy to report the 2" Nerf Vortex fits this baby like a glove, and when fired that round is so straight its on a wire! Im woundering if I can regulate a CO2 bottle to auto-refill these chambers. My concern is will the PVC hold up to the cold CO2?
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Last edited by Boz on Tue Jan 02, 2007 4:26 pm, edited 2 times in total.

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Unread postAuthor: Etc1990 » Sat Dec 30, 2006 3:03 am

That thing is BAD A$$! Makes me want to build a pneumatic.
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Unread postAuthor: LucyInTheSky » Sat Dec 30, 2006 9:15 am

You should have used better valve, like a 3" piston valve.

But it is a really good gun, you could use one chamber at a time on the paintball feild?
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If your getting chased off a police dog, try not to run through a tunnel then onto a small see-saw then through a ring of fire. They are trained for that!
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Unread postAuthor: Boz » Sat Dec 30, 2006 9:18 am

LucyInTheSky wrote:You should have used better valve, like a 3" piston valve.

But it is a really good gun, you could use one chamber at a time on the paintball feild?


Remember I designed this for use in paintball, not for power. A bigger valve woulda been better for the cannon if I did not intend to shoot it at people. There are regulations on the FPS you can fire at on the field, and trust me even with the 1 inch valve this puppy can go way over.
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Unread postAuthor: medievalman » Sat Dec 30, 2006 9:21 am

well, if you are using it for paintball, you should make it so you can actually hold it. it isnt a very practical paintball gun at all.
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Unread postAuthor: Boz » Sat Dec 30, 2006 9:40 am

Theres a mount it will attach to and we use it in the base, its more of a intimidator. If I wanted a paintball gun I already bought one, I wanted a cannon.
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Unread postAuthor: medievalman » Sat Dec 30, 2006 9:41 am

oh, its more of a stationary gun. i see.
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Unread postAuthor: zeigs spud » Fri Jan 12, 2007 6:21 am

breach loading cannon that size!! nice!!!!! lol
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Unread postAuthor: Recruit » Fri Jan 12, 2007 7:50 am

He should load it with lots of paintballs with a styrafoamcups on both ends. That will make great buckshot.
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