Marble Trebuchet

This is a rough 1/8 scale model of my teams entry into Punkin Chunkin ( http://www.punkinchunkin.com/ ). There is a good deal of tuning which goes into a trebuchet and it's difficult to work it all out full scale since we only get some many shots between repairs. This model is to facilitate tuning work. Also just for fun. We enter purely for fun and our budget it way on the low side to be competitive but that's no excuse not to tune up.

At full scale the treb is 12 feet tall to the pivot