The cam is the part of the mechanism that rotates. A crank can be used to turn the cam. The outer edge of the cam is in contact with a follower. As the cam rotates, it pushes the follower.

Mechanism and Machine Theory (2023). [2] Analysis of structural design defects in parallel overloading mechanisms with cam transmission mechanism. Applied Mathematical Modelling (2022).

Here’s [Badwolf’s] team posing with their college project. It’s a 4-axis gimbal mount for a camera that they designed in CAD, cut parts using a laser, then milled them down to spe… ...