[camalex3999]

Glad to see that other teams are having success with the pneumatic catapults. Our team is doing something similar. We have a catapult made with two pieces of conduit and roughly 30 lbs of spring force on the end. We are planning to use a piston to pull it back. When we tried it today we only put air to one side and it extended too slow when releasing the pressure. Tomorrow we plan on hooking up both sides to see if we can get it to extend faster.
Without the piston we can shoot the ball about 7' high at 16' away.