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Mid-Size Coaxial

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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Mid-Size Coaxial

Unread postAuthor: jssizzle » Sun May 20, 2007 11:19 am

Well, my first professional-ish looking piston cannon is done!

Specs:
2.5" chamber . . . about 2-3 ft.
1" barrel with female adapter
Hot glue piston with a neoprene disk
Pressure Gauge
Schrader valve for filling
1/4" NPT ball valve for actuating piston
2 grips from a water gun

Mostly made of parts I found around the house.
Very comfortable to hold, easy trigger setup, all that good stuff.

I painted it with the same pattern as this one:

http://www.spudfiles.com/forums/jument- ... t7465.html
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Attachments
IMG_4359.JPG
Ball valve breech on marble barrel
IMG_4344.JPG
The cannon
IMG_4349.JPG
Back setup
IMG_4354.JPG
Holding it
IMG_4362.JPG
Half tennis ball bumper
IMG_4365.JPG
The piston
IMG_4368.JPG
Again the piston
IMG_4369.JPG
And this!!!!!
Last edited by jssizzle on Sun May 20, 2007 6:00 pm, edited 2 times in total.
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Unread postAuthor: mega_swordman » Sun May 20, 2007 11:22 am

Nifty! That's really cool! I really like the handles. Did you get them off one of those water bazooka things?
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Last edited by mega_swordman on Sun May 20, 2007 11:43 am, edited 2 times in total.
"Never tell people how to do things. Tell them what to do and they will surprise you with their ingenuity." George S. Patton
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Unread postAuthor: FeLeX » Sun May 20, 2007 11:26 am

Duddddeeeeeeeeeee! Thats so tight! awesome work man! I think that first ever in that kind of style. Really nice man.
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Unread postAuthor: hi » Sun May 20, 2007 11:34 am

very well done. i dont think that color ever gets old. id like to see the piston though.
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"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote

you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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Unread postAuthor: zeigs spud » Sun May 20, 2007 12:04 pm

hi wrote:very well done. i dont think that color ever gets old. id like to see the piston though.

same!!! pistons r one of the best parts to see!
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Unread postAuthor: -BIGBEAR- » Sun May 20, 2007 12:59 pm

i like the adaption of the ball valve as a loading mechanism...very nice little gun there....looks like its fun to run around with..either way its a nice looking cannon
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Unread postAuthor: potatoflinger » Sun May 20, 2007 3:53 pm

cool paint job!
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Unread postAuthor: jssizzle » Sun May 20, 2007 4:01 pm

Added piston pics, etc.

I also have a paintball barrel for it, but its not painted yet.
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Unread postAuthor: experament-u2 » Mon May 21, 2007 12:41 am

thats awosme i like the handles and i dont know why but the trigger to
great gun
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Unread postAuthor: jackssmirkingrevenge » Mon May 21, 2007 1:24 am

-BIGBEAR- wrote:i like the adaption of the ball valve as a loading mechanism...


:idea:

With some kind of electronitc or pneumatic actuation, that could easily be turned into an effective semi/full auto design
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Unread postAuthor: VH_man » Tue May 22, 2007 6:52 pm

how do you breech load a coaxial?
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Unread postAuthor: jssizzle » Tue May 22, 2007 7:38 pm

The marble barrel screws on to the end of the 1" barrel, so its just kinda "half breech loading".
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Unread postAuthor: spudthug » Tue May 22, 2007 8:12 pm

sweet gun js.. in hte near future i would like to see a piston in a tee gun.. not that im forcing u im just saying it would probably look pimp!!, just like all ur other guns..
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4" piston valved cannon-half done..( i spilt my cement...)

Hybrid- 75% done. need to build propane holder and drill/tap sparkplug hole..
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Unread postAuthor: jssizzle » Wed May 23, 2007 4:53 pm

Thanks!

I'll eventually get around to it but im running out of cash right now.
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Unread postAuthor: ShowNoMercy » Wed May 23, 2007 5:05 pm

Yea nice gun and I feel your pain, money for a college kid is almost nonexistant. :cry:
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It seems you've lost your way
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