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Solenoid Valve for T-Shirt Cannon

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: POLAND_SPUD » Wed Nov 03, 2010 1:47 am

heh... that's pretty clever
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Unread postAuthor: Technician1002 » Wed Nov 03, 2010 2:36 am

MrCrowley wrote:They probably regged the pressure down or changed the timing on the valves to limit flow. I imagine it's not so fun catching t-shirts bouncing off the walls :wink:

edit: Their 'first test' video seems to be shooting them closer to 100yards, hard to tell. 150 yards does seem like a stretch with that valve unless they can push the pressure above 150PSI (which doesn't seem likely if their reg only goes as high as 150PSI) and/or increase the valve dwell time.

I looked up the dimensions of a basketball court. My 70 foot guess was a little high. They are launching from near center court and going 1/2 court to the wall. The distance is about 50 feet. The outdoor range looks to be a little farther, but I'm sure it is less than 150 Feet.

My Marshmallow Cannon tosses shirts 200 feet at 100 PSI. That is without a valve with a low CV and hose between the valve and barrel.
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Unread postAuthor: MrCrowley » Wed Nov 03, 2010 2:48 am

The point of my previous post was no to second guess your range judgement but to add that they probably regged the pressure down in the cannon and/or changed the dwell time of the valve so they would not over-shoot the basketball court.

Without knowing the dwell time of the valve and the pressure the cannon is regulated to for a particular shot, it would be difficult to estimate accurate range distances at the cannon's full potential.
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