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Unread 24-10-2005, 19:23
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Sepsis900 Sepsis900 is offline
professional...er...I build robots
AKA: Alex Bachmanov
FRC #0321 (Robolancers)
Team Role: Leadership
 
Join Date: Jun 2004
Location: Philadelphia, PA
Posts: 15
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Talking Re: pic: Shooting a pvc projectile from 70 yards out at Homecoming!

heheh...i have a 2.5-inch-diameter barrel on my air cannon. It uses 120psi per shot. Also, i made an ice mold using leftover PVC from the barrel, so i have a projectile that fits exactly into the barrel and has almost zero friction as it's launched. My cannon can make that shot from 150 yards, and destroy almost twice as much stuff when it lands.
=D
That's me holding the cannon in my picture.
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