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pressurized shells

Post questions and info about pneumatic (compressed gas) powered cannons here. This includes discussion about valves, pipe types, compressors, alternate gas setups, and anything else relevant.
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pressurized shells

Unread postAuthor: Eddbot » Tue Jan 15, 2008 8:20 pm

ok, i was thinking about real bullets and trying to figure out a way to contain the energy needed for each shot in the round (like a real bullet w/gunpowder) then i thought of a 12 gram CO2 cartridge, then thought too much for one shot, so i came up with this:

Image

it's partially based on someones pen gun (can't remember who, i think it was JSR) the schreader is the fill and exhaust, and the projectile goes in the shell, when it's in the gun (that hasn't been made yet), pin on gun opens schreader-> projectile moves not as far as expected. yeah, it's low volume, but high pressure, and i can shoot anything that isn't toooo heavy, like a bb or something
then i can base a gun around the shell and all it has to do is open the valve
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Unread postAuthor: spudy buddy » Tue Jan 15, 2008 8:24 pm

that sound like it might work although not a very big range, and how many cartriges would you have?
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Unread postAuthor: elitesniper » Tue Jan 15, 2008 8:25 pm

one question why would you put fins on a bb?
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Unread postAuthor: e1337 » Tue Jan 15, 2008 8:27 pm

I think it would work, but the range would be better if you had a pipe the same diameter as the barrell stationary on the actual gun (firing Thingy) and then had the cartridges revolving (Like the Eclispe By Solar).

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Last edited by e1337 on Tue Jan 15, 2008 8:29 pm, edited 1 time in total.

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Unread postAuthor: Eddbot » Tue Jan 15, 2008 8:28 pm

i saw ants thing, and was thinking about it when i made this in paint and was too lazy to go back and change because i had already uploaded it, so i just left it
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Unread postAuthor: Hotwired » Tue Jan 15, 2008 8:41 pm

elitesniper wrote:one question why would you put fins on a bb?

Because its dam hard to patent a spherical pellet?
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Unread postAuthor: Eddbot » Tue Jan 15, 2008 8:48 pm

yeah, that's the one
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Unread postAuthor: Zen/// » Tue Jan 15, 2008 9:00 pm

http://www.youtube.com/watch?v=VgFbNT2rk2A

Asahi M40 pre charged shells

Less than 25 of these left.
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Unread postAuthor: jackssmirkingrevenge » Tue Jan 15, 2008 10:39 pm

for reasons which I have yet to fathom, this idea sounds vaguely familiar ;)
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Unread postAuthor: Novacastrian » Tue Jan 15, 2008 11:09 pm

Totally useless comment posted here was removed :D Good luck with the shells :P
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Last edited by Novacastrian on Tue Jan 15, 2008 11:18 pm, edited 1 time in total.
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Unread postAuthor: Ragnarok » Tue Jan 15, 2008 11:14 pm

@JSR: Really? You shock me.
Well, as we've got JSR around, there is clearly no chance of original ideas any more.

Na, I'm hardly surprised anyone has made plans for such a thing. Just as long as you don't find out my plans for the combustion BB minigun...

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Does that thing kinda look like a big cat to you?
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Unread postAuthor: jackssmirkingrevenge » Tue Jan 15, 2008 11:43 pm

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Unread postAuthor: Ragnarok » Tue Jan 15, 2008 11:48 pm

Well, yeah, I know it's old hat in the airgun world, but has anyone actually succeeded in making a spudgun that uses a cartridge yet?
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Unread postAuthor: jackssmirkingrevenge » Tue Jan 15, 2008 11:50 pm

As far as prelaoded cartridges goes, the was my combustion cartridge prototype, not a completed project but close enough ;)
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Unread postAuthor: Eddbot » Wed Jan 16, 2008 1:12 am

god damn it, i thought i finally came up with something (partially) original, thanks for ruining my hopes and dreams guys, maybe you'll see me lying in a ditch somewhere waiting for a good idea with an empty bottle of jim beam in my hand

edit: DAMN!! 8 pages on it too, i never even saw that, *sigh*
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