An actuator is a device that converts electrical energy into physical motion. Choosing the right actuators (which include DC motors, gear motors, servo motors, linear actuators, muscle wire etc.) requires an imagination and a bit of math and physics. The vast majority of actuators produce eith
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/tutorials/show/basics-how-do-i-choose-an-actuator