About this 3D model

A da Vinci Style Catapult reproduced by 3D printing technology. Every parts can be printed without support. Refer to Leonardo's Machines: Secrets & Inventions in the Da Vinci Codices by Mario Taddei, Domenico Laurenza), Edoardo Zanon My blog: http://wakalics.blogspot.kr/ Youtube Link: http://www.youtube.com/watch?v=Gj7cbOEd24M&list=UUO-bsUJqu_i_O71Kg39OlBg