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Assistance in choosing a large air source

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: cammyd32 » Tue Oct 25, 2011 3:42 pm

Well, if it is regulated down enough, or in a small enough chamber, then it may be ok for airsoft. Maybe in the case of a sniper to get the distance factor


Perhaps, but remembering I just want to use this for testing mechanisms etc.
And the judgement still stands that it would be a lot more 'awkward' in a sense to fill, and attach to any mechanism. - because of its lower tolerance to low pressure rated PVC or cr@ppy pipe that you usually get on my ghetto designs. :D
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Unread postAuthor: Gun Freak » Tue Oct 25, 2011 3:53 pm

Price Warhead, price! He can't afford a compressor, so there is no way he can afford an HPA tank and all the goodies.
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Unread postAuthor: warhead052 » Tue Oct 25, 2011 3:54 pm

Well then, I would suggest going to the local dump and finding fridge compressors and regular compressors. Or if you have to try to convert a regular engine to an air compressor, add a belt and another motor and you have a compressor.
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Unread postAuthor: Gun Freak » Tue Oct 25, 2011 3:55 pm

Or you can just get a compressor. That saves some trouble :tongue3:
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Unread postAuthor: cammyd32 » Tue Oct 25, 2011 4:03 pm


Well then, I would suggest going to the local dump and finding fridge compressors and regular compressors. Or if you have to try to convert a regular engine to an air compressor, add a belt and another motor and you have a compressor.


Going to a dump might be a good idea, but the chances are anything that I find will be totally awful and will need constant maintenance, or It will need expensive or hard to find parts to get it working again, after all there is a reason they are in the scrapyard in the first place :wink:

As for converting a normal engine, it is something to look into but it isn't really a 'quick fix' sort of solution, if I try doing that it will probably end up becoming my 'main' project :D
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Unread postAuthor: warhead052 » Tue Oct 25, 2011 5:03 pm

Eh, couple of check valves and a hand crank and you have a hand powered air pump.
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Unread postAuthor: clemsonguy1125 » Tue Oct 25, 2011 5:15 pm

This compressor's not to expensive, Ive got it and its the best investment I made.
http://www.sears.com/shc/s/p_10153_1260 ... stAvl=true
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Unread postAuthor: cammyd32 » Tue Oct 25, 2011 5:28 pm

Eh, couple of check valves and a hand crank and you have a hand powered air pump.


that is a good idea, it would be very ghetto but it might just work :)

This compressor's not to expensive, Ive got it and its the best investment I made.
http://www.sears.com/shc/s/p_10153_1260 ... 3&blockNo= 3&blockType=G3&isABTestAvl=true


That does look like a good investment actually, if I am going down the compressor route I have no idea at the moment as to what I should be looking for though!! can any kind soul out there tell a poor compressornoob what specs a 'decent' compressor should have
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Unread postAuthor: Gun Freak » Tue Oct 25, 2011 5:37 pm

You probably want a ~125 psi and at least 5 gallon, that will give you the same amount of air as a propane tank except the compressor fills itself :)
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Unread postAuthor: clemsonguy1125 » Tue Oct 25, 2011 5:45 pm

Ive always bought craftsman products and had good luck. Id read all reviews for whatever compressor you are looking at, you may want to go a bit higher but that one works well for me.
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Unread postAuthor: warhead052 » Tue Oct 25, 2011 5:50 pm

cammyd32 wrote:
Eh, couple of check valves and a hand crank and you have a hand powered air pump.


that is a good idea, it would be very ghetto but it might just work :)


Well, give it a shot. Never know until you try right? I would try it if I had a spare engine.
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Unread postAuthor: dewey-1 » Tue Oct 25, 2011 5:59 pm

Compare these specs;

The more expensive one is a better bang for the buck.
Higher pressure, faster recovery rate if you look at the 90psi SCFM rating.

http://www.sears.com/shc/s/Compare?stor ... rodCount=2
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Unread postAuthor: Lockednloaded » Tue Oct 25, 2011 6:11 pm

Gun Freak wrote:Hpa tank + regulator + hpa pump = a hell of a lot more than a compressor.

Plus refills take a really long time. I think LnL takes like 30 minutes to refill his.

Any pump will have a hard time and take a lot of time to pump up a propane tank. I still suggest finding a compressor.


IMHO, it's totally worth the initial investment, I've probably refilled my tank 30 times, and at 10$ a fill at my nearest co2 source, it's practically paid for its self. It does take some effort though...
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Unread postAuthor: Gun Freak » Tue Oct 25, 2011 6:23 pm

Ok, it might be a good investment, but cammyd doesn't have the funds.
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Unread postAuthor: jackssmirkingrevenge » Tue Oct 25, 2011 11:53 pm

Lockednloaded wrote:It does take some effort though...


... but at least it keeps you fit ;) damn kids, sitting in front of their xbox all day :D

I would agree with the fridge compressor route if funds are a problem. You can get one for free with a bit of poking around.
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