Automatic translation .. Support for electric throttle It is very specific but it can be useful for this kind of project attached in video Check the diameter of your accelerator if necessary change the print scale https://youtu.be/gE9HSGcX3XI The project in video: The project in video: It is a question of adding an electric assistance for very low cost (here recovery wheel of Hoverboard) The location of the accelerator depends on the handicap. acceleration by foot or by hand For information, this 5th wheel has the particularity of "taking off" from the ground if necessary during rotation maneuvers