Cammechanisms are non-uniform translatable gears that help convert uniformrotating drive motions into non-uniform drive motions with or without latching.Generally speaking, cam mechanism consists of cams, engaging members and theframe. The desired movement path is defined by the geometry of the cam andproduced by pressing a contour or a profile on the engaging member. The unit is used to clearly demonstrate the function of a cam mechanism.Cams are available in different shapes. A roller plunger, flat plunger or camfollower can be used as the engaging member. The stroke is determined bymeasuring the travel. An angular scale indicates the corresponding angle ofrotation.