|Project by JeffL115||posted 10-29-2012 02:59 PM||1916 views||3 times favorited||15 comments|
This was my very first wood project and led me into the world of fine woodworking! I had to make a catapult for a HS science class, and my friends and I decided to make a much larger version for fun.
The Trebuchet is constructed of mostly scrap pine except for the two large main boards that are perpendicular to the base which are oak. It is attached together mostly with large screws. The siege weapon stands about 20 feet tall when the arm is at rest. The main axle is an Olympic barbel and is quite heavy. The counterweight was filled with cinder blocks and solid steel plates, totaling over 300 lbs. The sling was constructed of twine and the sling pouch was made out of cow leather. I installed a winch system that would lower the arm and slide along a steel wire for added leverage as the arm was brought down. The machine is a bit dangerous as I never could figure out a good release system. To fire you have to hold the arm down by hand then jump out of the way to release & fire the siege weapon.
This project was a lot of fun. It can fire bricks and bocce balls over 150 yards and pretty much anything else that will fit into the sling about 100 yards. However, it is not accurate at all and the projectile can land anywhere within a huge radius of the target. I think this is a rather unique project and thought that I would share it with you all. Enjoy!