Today in project set backs, while showing my project in person to friends it was noticed that the wheels rotated in opposite directions to each other. So a total design cock-up. In making the differential gearboxes asymmetric in an attempt to save space I have made it impossible to flip the diff over to change drive direction. So a complete redesign and reprint of all parts is required. This probably sets back this project a few more months now. #Maker #Fail