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No tater...just a blast?
Posted: Sat Jan 30, 2010 9:52 am
by bionic
I want to dry fire an air cannon to vent a high force blast of air. Watching videos you see the effects of the air venting the barrels and it looks like it is powerful on its own.
I don't need to fire a projectile but I do want lots of air to come out. Using 2" pipe what is the ideal length for a tank for this setup? That is, what is the smallest tank made of 2 inch pipe I can use and still get an impressive air blast? Barrel would be stubby and 3/4" pipe. My goal is to go as small as possible but still be powerful. What do you guys think?
Posted: Sat Jan 30, 2010 10:06 am
by Gun Freak
its gotta be BIG if you want a strong blast
Posted: Sat Jan 30, 2010 10:31 am
by Crna Legija
it dosent need to be big if you use high pressure. 3 feet chamber and barrel with a 2 inch piston valve at 120 psi would knock you of your feet
Posted: Sat Jan 30, 2010 10:41 am
by inonickname
-_- wrote:it dosent need to be big if you use high pressure. 3 feet chamber and barrel with a 2 inch piston valve at 120 psi would knock you of your feet
I'm going to have to disagree.
Is there a specific use for this?
Posted: Sat Jan 30, 2010 10:54 am
by Gun Freak
bigger chamber and lower pressure would work best
Posted: Sat Jan 30, 2010 11:50 am
by bionic
It is for an invention. It has nothing to do with destruction or weaponry or tatoes or anything like that. before I cut this 4 foot length of PVC I've got and put caps on it i wanted to check here first for the minimum length to cut to. I'd love to go to 1 foot of length or 2 foot max....for the tank. And keep pressures sort of low.
Picture a rolled up sock at about 2 inches from end of barrel - and when i say barrel I basically have a stub of 3/4 inch pipe as an outlet after the sprinkler vavle. i need to blast the sock ball across the room.
Posted: Sun Jan 31, 2010 4:44 pm
by bionic
Update -
Made a pretty snazzy tank with 3/4" sprink valve. Lots of honking at 60 psi and lower. Blew a rolled up sock placed 2 inches in front of .75 " pipe barrel/nozzle whatever across the room ok I guess. Much too loud.
Even ported the top of the sprink and put in a 1/8th inch QEV/blow off. Still loud like a tuba.
Design was for a mousetrap. Mouse walks up stands on microswitch platform - puff - unharmed mouse blown into receptacle. Tank recharges. Ready for next mouse.
On to another invention Bye : )