Cam and follower

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A cam and follower mechanism is a type of linkage that converts rotary motion into linear motion, commonly used in mechanical engineering applications such as valve actuation systems and printing presses. The cam is a shaped piece that rotates around a central axis while the follower is a component that moves along the surface of the cam, following its contours. This arrangement results in a repetitive, predetermined motion for the follower, which can be adjusted by changing the shape of the cam.