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Jebus

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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Unread postAuthor: inonickname » Thu Sep 03, 2009 6:11 am

:shock: clicky

Needs around 90 psi in from a shop compressor. Not sure on the kind of fittings, perhaps hydraulic QD.

Any estimates on price? It would sure as hell power one monster of a gun.
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 03, 2009 6:33 am

Isn't it meant as a jack of sorts rather than a compressor though?
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Unread postAuthor: inonickname » Thu Sep 03, 2009 6:36 am

Yes. It's to pump in a similar way to a hydraulic jack, instead using air rather than an oil. I don't know why exactly, but that's some insane pressure for smaller guns.
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Unread postAuthor: FORE!!!! » Thu Sep 03, 2009 6:42 am

what sort of vessels/pipe can withstand 10.000psi?

id start to crap myself once i reached 1000psi
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Unread postAuthor: inonickname » Thu Sep 03, 2009 6:47 am

Not unfeasible, you just have to start thinking custom machined and hydraulic fittings. Of course you don't have to use the *full* extent of it's pressure capabilities.

Any ideas on how much it would run?
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Unread postAuthor: POLAND_SPUD » Thu Sep 03, 2009 6:48 am

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Last edited by POLAND_SPUD on Thu Sep 03, 2009 7:28 am, edited 1 time in total.
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Unread postAuthor: Hotwired » Thu Sep 03, 2009 6:51 am

It holds 600cc of hydraulic fluid and the purpose of the pumping of air is to generate pressure for it.

Possibly, by molesting it you could get the air out instead but it's 10,000psi hydraulic pressure which may not necessarily be what the pneumatic pressure is.

Dam, innocently looking for high pressure pneumatics brings up this...
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Unread postAuthor: inonickname » Thu Sep 03, 2009 6:53 am

I was wondering why it mentioned 600cc. I guess there's no point in butchering it then, seen as PCP rifle pumps are available for moderate prices and easily pump to mid 3000 psi, which is moar than enough for many spudders.
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Unread postAuthor: suburban spudgunner » Thu Sep 03, 2009 6:58 am

Hotwired wrote:Dam, innocently looking for high pressure pneumatics brings up this...


:shock: ...WHAT THE %&@#!!!

On a side note, I'm kind of disappointed that this wouldn't work. I would have liked to see a 10000 psi small bore gun...
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Unread postAuthor: FORE!!!! » Thu Sep 03, 2009 7:02 am

"The man had used a high-pressure pneumatic grease gun to inject his penis. lolololol

i can understand asians doing it ,they also eat dogs,but seriously how small must his dick of been for him to even think of attempting this,i suppose he must of been a little embaressed in buying a penis pump :D
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Unread postAuthor: POLAND_SPUD » Thu Sep 03, 2009 7:39 am

he didn't know that fridge compressors can work as good vacuum pumps... :wink:



while it would be cool to be able to reach 10 000 psi there are few people who have access to materials or machinery needed to build a safe gun operating on 1000 psi air
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Unread postAuthor: jackssmirkingrevenge » Thu Sep 03, 2009 7:47 am

POLAND_SPUD wrote:he didn't know that fridge compressors can work as good vacuum pumps... :wink:


See, without distractions like this you would have finished your semi a long time ago :D

while it would be cool to be able to reach 10 000 psi there are few people who have access to materials or machinery needed to build a safe gun operating on 1000 psi air


Very true - 10,000 psi is in the realm of pistol or shotgun cartridges, if you need that sort of power it's much easier to burn powder or build a hybrid.
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Unread postAuthor: inonickname » Thu Sep 03, 2009 8:03 am

Adding to that, powder is considerably cheaper. Home-manufactured NC or BP is pretty much cheaper for similar power from a hybrid. (accounting for costs of propane cylinder and scuba tank).
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Unread postAuthor: D_Hall » Thu Sep 03, 2009 8:36 am

FORE!!!! wrote:what sort of vessels/pipe can withstand 10.000psi?

Thick wall and made out of decent steel (as opposed to the cheap crap that most pipe is made from). Other than that, it's not hard to do. We've got rocket motor cases that are good to 30,000 psi. We don't TRY to run them that high, but sometimes shite happens.
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Unread postAuthor: POLAND_SPUD » Thu Sep 03, 2009 8:56 am

hydraulic stuff isn't really that expensive (though no one really uses it here) but it would be pretty tough to build a piston that can withstand that kind of stress and forces without machining...
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