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Co-axial+spudfies coin challenge

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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Impressive for my first mini?

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Co-axial+spudfies coin challenge

Unread postAuthor: Lockednloaded » Sun Jan 17, 2010 4:23 pm

High Pressure Mini Co-axial Smooth-Bore
I just finished this little guy, and am totally flabbergasted by its amazing performance. It is not my first cannon, just my first showcased cannon. It is made of 3/4" sch40 pipe, with a metal slurpee straw as the barrel. The piston is just a 3/4" dowel with a JB welded on sealing face. The whole cannon is held together with JB weld. i shoot it ate 220 psi, and just this morning put a nail dart through a quarter. Now time for the pictures:
Whole cannon with scissors for comparison.
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Shrader fill/pilot
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Now for some damage!
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Unread postAuthor: rcman50166 » Sun Jan 17, 2010 5:10 pm

the macro button, THE MACRO BUTTON!!

For those unfamiliar with what macro does, it allows in focus shots of objects very close to the lens. You shouldn't zoom at all while taking macro shots either.

The macro icon looks like this:
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Otherwise I find you post most impressive. I don't see those kind of damage pics everyday. I'd also consider that a large mini :wink:
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Unread postAuthor: Lockednloaded » Sun Jan 17, 2010 5:19 pm

sorry, i don't hve a camera, these are phone pictures, so yea the quality is bad. Yea i decided to build a larger mini so i wouldn't have to use insane pressures like jsr uses in his pengun, marker gun, and cartridge
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Unread postAuthor: Mitchza89 » Sun Jan 17, 2010 8:59 pm

Good for you mate :) Glad you've got a perfectly working high pressure gun. Great damage too!
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Unread postAuthor: jackssmirkingrevenge » Sun Jan 17, 2010 9:49 pm

Reminds me of myearly 6mm piston designs :) good job, though as always for small calibred I would advocate higher pressure and smaller chamber.

Any plans to fit a pistol grip and trigger?
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Unread postAuthor: Lockednloaded » Sun Jan 17, 2010 10:03 pm

thank you, i might put a lever sort of thing like you have in the sketch for your latest semi auto. I might not want to incorporate it into a pistol because it looks so cool now hat ive added a few aesthetic touches along with a suppressor, so i might keep it the way it is now
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Unread postAuthor: jackssmirkingrevenge » Sun Jan 17, 2010 10:10 pm

You could always disguise it as bicycle pump,Munich style ;)
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Unread postAuthor: Lockednloaded » Sun Jan 17, 2010 10:14 pm

yea, thats pretty much what it looks like now. I was thinking also cane gun, add alot more barrel, make the last half a silencer, and viola, silent cane gun.
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Unread postAuthor: jackssmirkingrevenge » Sun Jan 17, 2010 10:18 pm

Lockednloaded wrote:and viola, silent cane gun.


That's been on my list for a while now, need to find myself a cheapish cane to work with. Also, unless you want to hide it in a violin case, I think you mean "voila" :roll: :D

You should add it to the list ;)
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Unread postAuthor: Lockednloaded » Sun Jan 17, 2010 11:19 pm

haha whoops, but on the subject of concealed weapons and instruments, ive always wanted too make a nice copper gun in the shape of a trombone or something of the sort
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