and after spending the last 2 days discussing with my team, before we start cutting and welding the frame, we decided to change the design to like gravity, we believe this design works well, is relatively easy for us to make. the only thing we are unsure of, is what sort of size it should be, and standard size of a robot, we have looked at lots of robot photos but find it hard to tell. we have placed the motors, gearboxs and batteries where we want them and have an idea on space for other parts but want to be sure