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 Just a note, there are 2,534 teams registered and competing in FRC this year. That means that there are 2,533 teams being run in a manner entirely different than your own. - Jay Trzaskos [more] |
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#9
30-10-2007, 15:25
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Re: pic: T-Shirt Cannon at Purdue's Homecoming
looks good!
We discovered that it does not really take much air (or CO2) pressure to fire a T shirt. The trick seems to be having the right size of reservoir, and a very large valve to quickly dump it into the barrel. Also having the smallest size barrel possible helps. 30 psi in a 200 cubic inch (2 ft of 3" ABS) reservoir, going through a 1" gate valve into a 2-1/2" PVC barrel, seems to shoot a shirt as far as it needs to go. 
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