Rubber Band Trebuchet

This catapult works by storing elastic potential energy the type of energy you get from stretching something such as a rubber band or a spring and rapidly converting it to kinetic energy the energy of motion of a projectile in that case a cotton ball.

Rubber band trebuchet. The trebuchet is a medieval device not unlike a catapult that was used in warfare to hurl damaging objects from afar into areas that were otherwise inaccessible such as over castle walls and into forts. Don t make the rubber band really tight. Tape the rubber band onto the stick about 1 inch below the paper cup. My trebuchet is a bit different than some of the others that you see in that uses a rubber band instead of a counterweight.

A trebuchet works differently. 2 wood blocks 5 1 2 x 2 1 2 x 1 d e 3 wood dowels 3 16 x 2 1 2 a b c 1 balsa plank 3 4 x 1 2 x 7 f 1 8 32 x 5 bolt 1 8 32 nut 8 8 washers 1 4 screw eye hook 1 plastic egg shell orthodontic rubber band super glue tools. Rubber band trebuchet materials. This catapult worked by storing elastic potential energy the type of energy you get from stretching something such as a rubber band or a spring and rapidly converting it to kinetic energy the.

You want the rubber band to wrap on the side without the wire back and forth. Drill with bits wrenches rotary tool with bits clamps procedure. If it s too tight it will deform the hooks and if it s just snug you will actually get a little assist from the rubber.