JPL Open Source Rover Project
Dumb question, kind of unrelated: In the process of building a remote controlled cart to haul small heavy loads offroad. Have no experience in engineering or robotics. Where could one go to learn what's needed, say, starting at the motor/drivetrain? (ex: what kind of motor to use, exterior or interior gearing, how to calculate motor size/voltage/gearing needed to haul X weight up Y gradient, steering geometry, actuators for remote steering, etc)