We finally found a mechanism to make the legs work. We have also added features, our monster will be able to turn, like a tank, blocking one side and advancing on the other, for this, we have thought of several solutions. At first we wanted to use chains, and to cut a part, we would just derail the chain. However, it seems quite complicated to do. In the end, the solution we kept is to use a differential to be able to block one side. This solution involves using more motors and therefore no longer respecting the rule of using only one motor. For next week, it will be necessary to plan in advance the 3D models of the parts and the gears to be able to cut them with the laser cutter. You will also have to finish the list of materials to be used and buy them.