[JesseK]

We tested 6" wheels in a mock setup but found that the 2" clearance scrapes the rough terrain in some cases. For a WCP gearbox setup, this means that the transmission plates/gears themselves may take a beating in the long term. Remember, the WCP gearboxes stick down below the frame quite a bit.

For this reason we added 1x1x1/16" 'skid rails' for the entire rear half of the robot, where our WCP DS gearboxes live (non-direct drive due to 8" wheels). This testing has performed really well no matter how we throw it at the rough terrain.

How does this MCC cope with the rough terrain clearance in the long-term? It's a question for the general forum to come up with an answer rather than a criticism of the design - I suspect chains, belts and gearboxes alike will need a solution.