Pretty cool to design your own robot from different kits. However, watch the rules for any robot competition, know the type of parts, footprint and power requirements. In the meantime, you can find Tetrix (Pitsco), LEGO, FIRST CAD Library and VEX Protobot model files in SolidWorks and other 3d and 2d file formats on
www.3DContentCentral.com. Last week I saw a robot with a soda bottle attached. Dont spend your time modeling the kit part - when the real goal is to figure out your own assembly design. Marie