Greetings all...let it be known that I have no idea how to do pneumatics at all...but I want to lol...I've heard that I can use a screen door thing to make a cylinder....how much force can that thing actually do and how reliable is it?
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how to make a pneumatic prop?
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I have seen the same thing done with a spring and a bungee cord. Of course you would have to manually reset it after every group goes by. You can't beat the price, though.
http://www.scaryguys.com/slinger3.htm
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