RoverBot Build Log #3 — Full Rover CAD Model + 4-Wheel Steering Architecture

Third build log video for the new RoverBot platform. In this video, I walk through the first complete CAD layout of the rover, including the front and rear steering modules, wheel pods, kingpin supports, battery packaging, servo placement, and overall chassis architecture. The focus of this stage has been turning the steering concepts and cardboard linkage prototypes into a mechanically plausible design that can eventually be manufactured and tested. The goal is not to produce a final design, but to validate packaging, steering geometry, clearances, and the overall system architecture before committing to fabrication. With the upper kingpin supports now completed, the steering assemblies are beginning to resemble real mechanisms rather than isolated components. The next steps are to identify fabrication candidates, begin mechanical prototyping, continue firmware development for four-wheel steering control, and progress the rover power distribution electronics. Here's the excellent Onshape tutorial I mentioned where you build a complete little Stirling Engine -    • Stirling Engine Design & Assembly Step-by-...  . It took me about 2 days to get through that 70 min video and build it step by step, but you learn the basics, and it's a great way to get started with something real.