Summary
This catapult was designed with two primary goals in mind: avoiding the use of glue and only using laser cut parts.
Supplies
3mm (0.1 in) plywood
Laser cutter (we use the Epilog Laser Fusion M2 with a 75 watt C02 laser)
Size 64 rubber band (3 1/2 x 1/4 Inch)
Small object to catapult