Mid-Size Coaxial

Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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jssizzle
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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
Attachments
Ball valve breech on marble barrel
Ball valve breech on marble barrel
Holding it
Holding it
Back setup
Back setup
The cannon
The cannon
And this!!!!!
And this!!!!!
Again the piston
Again the piston
The piston
The piston
Half tennis ball bumper
Half tennis ball bumper
Last edited by jssizzle on Sun May 20, 2007 6:00 pm, edited 2 times in total.
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mega_swordman
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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?
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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FeLeX
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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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hi
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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.
"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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zeigs spud
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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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-BIGBEAR-
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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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potatoflinger
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Sun May 20, 2007 3:53 pm

cool paint job!
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jssizzle
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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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experament-u2
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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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jackssmirkingrevenge
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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
hectmarr wrote:You have to make many weapons, because this field is long and short life
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VH_man
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Tue May 22, 2007 6:52 pm

how do you breech load a coaxial?
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jssizzle
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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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spudthug
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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..
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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jssizzle
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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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ShowNoMercy
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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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