This practical work allowed us to design an planetary gear based mechanism, allowing us to change the speed.
The particularity of this system is that it contains in addition a servomotor allowing to change between two modes: a slow speed mode and a fast speed mode.
This tp has been realized with SolidWorks. For our preliminary theoretical calculations, we used Meca 3D.
For the robustness of the parts, we used solidworks simulation.
Here are somes images of the first half of the mobile robot :