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my first 5 pneumatics

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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my first 5 pneumatics

Unread postAuthor: Anatine Duo » Sat Feb 15, 2014 9:58 pm

My first post here!

Image

I made these back 2002-2003 (before video camera or Chrony), not a lot to go on, just knew that it was possible. Hand tools and a drill. Epoxy. Scrap.

Only the blue one is still functional. It fires 12g CO2 caplets by piercing them.

THe others, from top:

Spruce Goose, square reservoir coax 1/2" bore. Snappy while it lasted. Trigger acts directly on pilot valve.

Bullpup coax, 1/2". At 160psi it would break through 2 by 6 lumber. Trigger is a remote pilot valve.

3/4" ball valve in-line, the bottom tube holds a spring powered hammer that whacks open the valve. Weaker than expected.

First build ever, a hammer valve 1/2" barrel. Valve body made of wood. At 100 psi it would pierce 3/4" wood with roundball and have a second shot left (didn't expect that)

I have learned a lot here and hope to build more soon!
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Re: my first 5 pneumatics

Unread postAuthor: jackssmirkingrevenge » Sun Feb 16, 2014 10:53 am

Looks like an IRA weapons dump :D

Welcome to the forum :)

square reservoir


Big no-no, don't put pressure in a flat sided chamber!
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Re: my first 5 pneumatics

Unread postAuthor: Gun Freak » Sun Feb 16, 2014 12:19 pm

Looks like somebody's ready for the zombie apocalypse!!
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Re: my first 5 pneumatics

Unread postAuthor: bravootome » Sun Feb 16, 2014 2:36 pm

the blue one looks really nice, may i copy it ? i think i'll make it shoot AAA batteries
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Re: my first 5 pneumatics

Unread postAuthor: Anatine Duo » Fri Feb 21, 2014 2:00 pm

Bravo, please do. At some point I can get a better pic... I wanted to chrony that one anyway

JSM, on the square tubing, I agree. I was trying to get more air storage without adding height or width to the launcher, but after reading about aluminum and pressure cycles I wasn't too sad when it developed a leak. Better off using stronger round tubing and increasing pressure, though back then I didn't see a way to do that.
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Re: my first 5 pneumatics

Unread postAuthor: kustomkb » Fri Feb 21, 2014 5:45 pm

Nice work.

The wood work looks awesome!
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Re: my first 5 pneumatics

Unread postAuthor: Gippeto » Sun Feb 23, 2014 10:34 am

X2 :)

Seems to be a sudden influx of Canuks about....nice to see.

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Re: my first 5 pneumatics

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Re: my first 5 pneumatics

Unread postAuthor: jackssmirkingrevenge » Sun Feb 23, 2014 11:38 am

Gippeto wrote:Seems to be a sudden influx of Canuks about....nice to see.


Well I'm here now, it must be in the air :D

Apparently this t-shirt launcher I serviced is used for national peewee hockey games...
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