Design work by Rahul Korpu and Aaron Becker This enlarged trebuchet has rolling wheels for easy transport, and a jointed weight basket. This is designed to be cut out of 3/16" plywood that is 1'x1'. The files were edited in Inkscape, and the original .svg is included: Trebuchet_scaledVx.svg. A trebuchet (French trébuchet) is a type of catapult that was used as a siege engine in the Middle Ages. It is sometimes called a counterweight trebuchet or counterpoise trebuchet, to distinguish it from an earlier weapon called the traction trebuchet, which employed pulling men working the mechanism. The counterweight trebuchet appeared in both Christian and Muslim lands around the Mediterranean in the 12th century. It could fling projectiles weighing up to 350 pounds (160 kg) at or into enemy fortifications. Its use continued into the 15th century, well after the introduction of gunpowder. Wikipedia:TrebuchetThis is designed to be cut out of 3/16" plywood that is 1'x1'. (We purchase 3/16' plywood from Lowe's for $3.48 for a 2'x2' sheet)