What the Hoo Ha ?

Mr. Vance and i have set out on a mission: to build a medieval siege engine, a Trebuchet, capable of flinging biodegradable ammo up to 600 ft across a field, for no very good reason.
We are dumb.

But it will be fun.Initial Sketch is here, and if anyone has a Carbon steel axle we could use please give us a holler. More updates after our first construction day this sunday.