It’s a small linear motor which [ligonapProduktion] built ... In this screenshot he’s holding the center shaft while the coil assembly moves back and forth. But it works with a stationary ...

RC servos are a common component in many robotics projects, but [Giovanni Leal] needed linear motion instead of the ... attached to the output shaft in order to sense position, and the internal ...

The cam is attached to a shaft, like this ... motion of the cam into reciprocating movement. Reciprocating motion means that the linear movement, in a straight line, is repeated again and again.