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Nitrious oxide power?

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: Biopyro » Mon Nov 24, 2008 12:29 pm

It seems a very expensive way to do it!
Perhaps you would be better off investigating it's use as laughing gas. I'm sure you would find it quite enjoyable.
http://en.wikipedia.org/wiki/Nitrous_oxide#Recreational_use
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Unread postAuthor: john bunsenburner » Mon Nov 24, 2008 12:33 pm

Or a hand pump, what will be cheeper and stronger? or could i make a gun which works for both?
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Unread postAuthor: seudo411 » Mon Nov 24, 2008 1:17 pm

Have a look at this, it might help you harness the n2o into useable form, it is actually made for co2 but it might work with those canisters. http://www.rap4.com/paintball/os/thunder-grenade-charger-with-regulator-p-1868.html see the last two pics
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Unread postAuthor: Biopyro » Mon Nov 24, 2008 1:23 pm

You could easily make it use both. you can get a CO2 to tyre valve adapter which is used for filling bike tryes, then you can use a hand pump too.
The CO2 will be more expensive, but more powerful. If you use a stirrup pump with a gauge then you will get much better pressures than with a hand pump, and with a good valve it will certainly be powerful. To harness the full power of CO2 you need a metal gun which isn't too big.
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Unread postAuthor: john bunsenburner » Mon Nov 24, 2008 1:41 pm

how big should my chamber be then? i have a huge piece of steel pipe it will be really strong so how big should the volume be, oh and i have a one way check valve on one end brazed and really tight, i can always shorten and tap it to change the chamber length, i will use it on a self made sniper gun with a stock and everything.
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Unread postAuthor: seudo411 » Mon Nov 24, 2008 2:24 pm

Search the site or browse the how to forum, there is a excel sheet that allows you to calculate how much co2 you need for specific pressure.
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