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Just another 500psi BB gun

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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Just another 500psi BB gun

Unread postAuthor: Mitchza89 » Wed Jul 02, 2008 1:01 am

This is my latest throw together from spare parts. It's nothing special but I love the aluminium 8mm ID barrel. I'm able to get to 350+psi with my pump but my mate and myself just put together a fridge compressor pump which should be up and running by tomorrow. The barrel is that firmly in place, that when you flick the side of the gun, everything verberates :D.

I'll get some damage pics of a 500+shot asap aswell as my 350psi pump shots.

Cheers!
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Unread postAuthor: biggsauce » Wed Jul 02, 2008 1:11 am

Oh just another 500 psi cannon huh? Pretty good for some spare parts cuz

Lean and mean, I like it 8)
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Unread postAuthor: THUNDERLORD » Wed Jul 02, 2008 1:16 am

Nice Mitch!
Has kind of an antique look, Maybe it's the brass.
Makes me want to make use of all the ball valves I have sitting around.
I'd like a metal piston gun.
Wish you had videos too!!! 8)
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Unread postAuthor: starman » Wed Jul 02, 2008 1:21 am

Slim and sleek yet very solid. Though a little understated in looks, I have a feeling this thing stings! I like the handle, quick connect placement and valve trigger setup.

Very nice work, especially for a "throw together"!.. :wink:
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Unread postAuthor: Mitchza89 » Wed Jul 02, 2008 1:25 am

Haha thanks alot for that bud. It's gonna be interesting to ark up the fridge compressor and see how much difference there is at that sorta pressure...

All the best mate,

Mitch.
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Unread postAuthor: Gippeto » Wed Jul 02, 2008 1:26 am

That's pretty slick Mitch! :) (again!)

Waiting on the damage pics.

Note to self: Get one of those "Aussie sheds" that have all the wonderful spare parts. :D
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Unread postAuthor: psycix » Wed Jul 02, 2008 4:21 am

Nice gun! Could we see a pic of the piston?
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Unread postAuthor: SpudFarm » Wed Jul 02, 2008 4:28 am

same as psycix :)
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Unread postAuthor: Mitchza89 » Wed Jul 02, 2008 6:08 am

Haha I'll try boys. My piston is something that could be seen as "junk". When I bought my blowgun for a sprinkler valve a few years ago, there was a rubber nozzle that was screwed into it. Funny thing is, is the type of rubber it is, is non-abrasive so it doesn't need lubing/maintainence at at all, and it fits straight into the 1/2 nipple between the ball valve and the tee perfectly. It's fantastic due to the need for no "glued" sealing faces so I'm able to really crank up the pressue with no sealing face blowouts.

I reckon I might need to make the chamber a tad bit bigger so it's got a bit more kick at lower pressures (so there is less of a psi drop) but ehhh....The chamber fills at 10-12psi per pump of my homemade pump so it's very quick.

What does the community think?

More beer! (yes I've had a few :D)
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Unread postAuthor: Sticky_Tape » Wed Jul 02, 2008 7:38 am

Is it like this?
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Unread postAuthor: Mitchza89 » Wed Jul 02, 2008 7:39 am

Yes mate, it's pretty much identical to that except it doesn't have the metal base with the metal thread, it's just rubber through and through...even the thread.
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Unread postAuthor: pizlo » Wed Jul 02, 2008 9:54 am

Damn I like this gun! Clean and metal *druels
Damage pics, ad make some sorta cool metal ammo to shoot through two by fours.
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Unread postAuthor: magnum9987 » Wed Jul 02, 2008 10:03 am

have you chronoed it?
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Unread postAuthor: POLAND_SPUD » Wed Jul 02, 2008 10:38 am

nice gun.. but honestly I am more interested in your fridge compressor :wink:

I hope it's gonna work fine because lots of people had some problems with them... post some pics of the pump as soon as you build it
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Unread postAuthor: Brian the brain » Wed Jul 02, 2008 11:58 am

I'm big headed enough to assume you have at least taken a look at my "classic" sawed-off before you decided to build this.. :D

More and more people give this design a go, but not all succeed like you have.
This design and the fridge compressor are made for each other.A match made in spudders heaven.
You will like the result!

Love all the brass accents on it, and I think this is one of the best copies yet.
Well,not really a copy since you used a long, small diameter barrel, but that makes it an original.
The trigger looks great and you got the bent handle exactly right.
Amazing some people can;t seem to get it right.
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