Greetings, Here is a quick update from Jörg about the gearboxes for the WRV1 rover. About a week ago we posted the blueprints and photos of the gearbox for the WRV1 rover. Jörg has now finished assembling one of them. The photos below show the parts, the assembled gear, and the gearbox mated with the wheel and the axle.

From WRV1: Wheeled Rover Vehicle 1