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Jument - 2" Sprinkler Valve Cannon

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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Jument - 2" Sprinkler Valve Cannon

Unread postAuthor: jssizzle » Sat Apr 14, 2007 4:55 pm

My newest cannon, first one posted here.

I thought Jument would be a cool name. Look it up.

Cannon Specs.:

All pipe is sch. 40, everything is NSF-pw, no DWV. I don't want to kill myself.
2 3' 3" chambers
2" pneumatically actuated sprinkler valve (3/8" ball valve for actuation)
Interchangeable 2.5" tennis ball barrel and 1.5" potato and other crap barrel
A wicked paint job, If I do say so myself . . .
2 shrader valves for filling (bike pumps all the way!)

I normally operate it at around 70 psi, although I know I could definitely go up to around 115. 70 psi with bike pumps when you have around 7 to 8 square feet of chamber gets tiring after the 3rd or 4th shot.

This thing is so much fun! A great mix of power and portability, and pretty dang intimidating.

The paint on the 2.5" barrel seems to be chipping off (Although the 1.5" one seems fine . . . odd) so I'll probably sand and repaint it.
I've left the solenoid on just to plug the hole, might do it with some epoxy later.

I might post some damage pics, but its hard to capture the feeling of little chunks of potato raining down on you for 10 seconds after a shot at a piece of plywood 45 degrees to the ground.

Pics:

Image

The cannon with 2.5" barrel.

Image

Lengthwise.

Image

The valve setup.

Image

1.5" barrel.
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Unread postAuthor: hi » Sat Apr 14, 2007 5:00 pm

thats cool, what are those things on the chamber. they look like schrader valves, but im not sure. if they are schrader valves, why do you have two?

i really like the paint job, it looks good.

how much did that valve set you back?
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Unread postAuthor: jssizzle » Sat Apr 14, 2007 5:03 pm

Thanks

Yeah those are bolt on shrader valves, I have 2 because its alot faster to pump this thing up with two bike pumps (I don't have an air compressor).

I took your advice on pain job. Knew you'd like it.

The valve was about $60 bucks from sprinklerwarehouse.com, yes i know someones going to say I should have made a piston, but I don't have the ability so far, I've been working with only a screw driver, hedge clippers and a hammer for now (You'd be surprised what you can get done!).
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Unread postAuthor: dewey-1 » Sat Apr 14, 2007 5:19 pm

--
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Last edited by dewey-1 on Sun Apr 20, 2008 3:53 pm, edited 1 time in total.
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Unread postAuthor: experament-u2 » Sat Apr 14, 2007 5:31 pm

nice gun
anychance of some damage pictures
oh and i to love the paint job its sweet
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Unread postAuthor: hunter1992 » Sat Apr 14, 2007 7:07 pm

very nice!! Probably the best paintjob I think ive seen on a cannon!
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Unread postAuthor: Fnord » Sat Apr 14, 2007 8:57 pm

Great cannon, super cool paintjob. Cant wait to see some damage pics.
Load it with 5 pounds of BBs and blast something interesting :)
Consider investing in a hotglue gun so you can mold pistons in the future.
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Unread postAuthor: hi » Sat Apr 14, 2007 9:08 pm

_Fnord wrote:
Consider investing in a hotglue gun so you can mold pistons in the future.


you dont even need that, i mold mine with a lighter.
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Unread postAuthor: super spuder » Sun Apr 15, 2007 11:33 am

i love the paint :cyclopsani: how did you get the paint to look like that?
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Unread postAuthor: VH_man » Sun Apr 15, 2007 11:35 am

this may be a dumb question but where can i get a 2 inch sprinkler valve? i wanna use it to actuate my 3 inch piston........
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Unread postAuthor: jssizzle » Sun Apr 15, 2007 12:14 pm

The paint was pretty simple: I sprayed the chamber and barrels with a base coat of black and red, respectively, and then after waiting a while I just sprayed back and forth across the pipe with the other color making the camo-style pattern. I used Krylon Fusion spray paint, perfect for PVC.

You can find 2" sprinkler valves at sprinklerwarehouse.com.
I recommend trying to find one locally first though, shipping can be expensive.
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Unread postAuthor: iPaintball » Sun Apr 15, 2007 1:57 pm

Nice cannon, I wouldn't mind owning a coulple 2" sprinkler valves myself!
Keep up the good work. :P
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Unread postAuthor: Flying_Salt » Sun Apr 15, 2007 2:50 pm

jssizzle wrote: Yeah those are bolt on shrader valves, I have 2 because its alot faster to pump this thing up with two bike pumps (I don't have an air compressor).


What? Do you dual wield bike pumps or something? I have 5 feet of 3'' chambers, and its a real pain to pump up, the pump starts getting funny after about 70 psi...

Nice cannon, but it seems like it would be tricky to shoot stuff with the barrel at 45 degrees. So I guess the 2'' sprinkler dumps air a lot faster than a normal 1'' valve?
I love the paint job. I also have a 1.5'' crap barrel for my pneumatic :D
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Unread postAuthor: zeigs spud » Sun Apr 15, 2007 3:16 pm

NICE cannon. i LOVE that paint job!!!

very nice lol.
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Unread postAuthor: jssizzle » Sun Apr 15, 2007 5:22 pm

Haha yes Flying salt I have the muscles to use two bike pumps at the same time . . .
I usually shoot with friends and we have 2 guys pumping at the same time.

I would have put the barrel at a better angle but to fit the sprinkler valve on to the adapter I had to angle it upwards a little. Would have been really annoying to have assembled the chamber only to find the valve can't attach to it.
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