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extrusion pistol, semi-realistic. new paint job!

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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extrusion pistol, semi-realistic. new paint job!

Unread postAuthor: jave101 » Mon May 24, 2010 12:22 am

my kind of coaxial pistol gun
made from aluminium extrusion and a modified blow gun. the barrel has a hole drill down into the lower chamber and into a alloy block where the air travels in a Z path through the block and the piston seals up against it as in a standard coaxial. a hole underneath the end of the barrel in the block allows air to enter the pressure chamber infront of the block.

with this configuration i am aware that it is not as efficient as a standard coaxial with the restrictions and change in direction of air flow, but that was not my aim, i wanted a semi realistic pistol with decent power which this has.
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Attachments
24052010857.jpg
24052010858.jpg
19052010855.jpg
the components in their positions
17052010850.jpg
the barrel Z block
17052010851.jpg
the barrel Z block in its position inside the pressure chamber
18052010853.jpg
the front of the carbon fiber piston
18052010854.jpg
the rear of the carbon fiber piston, the blue stuff is a filling compound
Last edited by jave101 on Tue May 25, 2010 4:07 am, edited 1 time in total.
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Unread postAuthor: chinnerz » Mon May 24, 2010 12:55 am

NICE!!!

Carbon fiber piston eh..... interesting
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Unread postAuthor: qwerty » Mon May 24, 2010 1:23 am

The first square piston on spudiles? anyway looks great you could try making the blowgun/handle a little thicker to make it more realistic.
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Unread postAuthor: chinnerz » Mon May 24, 2010 2:55 am

i want to see something like this but in rifle form (longer) . That would be awesome. would look like the laser rifle from fallout or something :P :P
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Unread postAuthor: Gaderelguitarist » Mon May 24, 2010 8:17 am

This makes me feel a lot better about my rectangular combustion chamber.

Just be careful to not take it too high in pressure, as the walls may start to balloon just so slightly. Looks like you know a thing or two though so I guess I'm just blowing steam.
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so many muchness
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Unread postAuthor: POLAND_SPUD » Mon May 24, 2010 8:51 am

wow interesting... AFAIK you can get tubular aluminium extrusions/ profiles (whatever you call them)

so something like this Image
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Unread postAuthor: jave101 » Tue May 25, 2010 3:51 am

new paint job
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new paint job, satin black
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Unread postAuthor: chinnerz » Tue May 25, 2010 6:11 am

mmmmm flat black, my fav :D
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Unread postAuthor: rcman50166 » Tue May 25, 2010 6:50 am

POLAND_SPUD wrote:wow interesting... AFAIK you can get tubular aluminium extrusions/ profiles (whatever you call them)

so something like this Image


Engineering's erector set
http://www.8020.net/

Carbon fiber is amazing stuff, ideal for a piston. If machined right it will out perform almost anything else. I know and love carbon fiber (and their splinters) from my supermileage vehicle. :roll: But anyways, this gun is particularly interesting. It's one of those builds no one expects to be anything potentially lethal until you explain it's purpose.
(Censored by BTB.)
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Unread postAuthor: POLAND_SPUD » Tue May 25, 2010 8:27 am

@rcman
nice but it doesn't sound like a real fart
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Unread postAuthor: woodscout » Mon Jun 07, 2010 8:54 am

very nice, nefer seen a box piston before. nice job indeed! :wink:
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Unread postAuthor: Mr.Sandman » Mon Jun 07, 2010 1:43 pm

Damn, he took my idea. Ah well perhaps i could do a 34-gon coaxial? :lol:
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Yeah, it's that important.
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Unread postAuthor: woodscout » Sat Jun 26, 2010 3:02 am

you should attach a red dot or something similar, it would give it more the "evil pneumatik" look :D
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Unread postAuthor: dart guy » Thu Jul 18, 2013 12:13 pm

awwwww you should have kept it silverish it looked almost like the one from the anime/manga hellsing, actualy he does get a new pistol so it still looks close, so do ya got 13mm exploding holysilver bullets just on a side note are you a vampire ha ha ha ok im done
sorry
its a nice gun
to bad it doesnt have a mag for repeating shots is it a breach load or muzzle loader the piston looks like an icecream sandwich
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Unread postAuthor: Blitz » Thu Jul 18, 2013 2:24 pm

I admit that I haven't seen this until now since I have been away for such a long time - but, wow, cool! I've started playing around with aluminum extrusion, excellent for framework. In fact, it'll become very useful in a few projects I have coming up. :)

(BTW, what's with you and the thread necros lately, dart guy? :P)
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