[Michael Hill]

In my opinion, even if you're not going to use CAD to print drawings and manufacture off of the drawings, you should at least do 2D prototyping with the drawings. It's WAY faster to iterate on the computer than it is in wood, especially when it comes to getting the right cylinder locations, appendage movements, and even drivetrain when looking at going over obstacles. It helps you determine just how much ground clearance you need to put in.