Subject: Kinematics of Machinery

Topic: CAM Mechanism

Difficulty: High

Trace point: :-

It is a reference point on the follower and is used to generate the pitch curve. In case of knife edge follower, the represents the trace point and the pitch curve corresponds to the cam profile. In a roller follower, the Centre of the roller represents the trace point.

Pitch point :-

It is point on the pitch curve having the maximum pressure angle.

Stroke :-

It is the maximum travel of the follower from its lowest position to the topmost position.