Conclusion:

• The cams are most widely used elements in IC engines, machine tools, printing control mechanism, dye casting, milling and punch presses. The complicated motions that are difficult to achieve can be easily achieved with the help of a cam. Radial and tangent cams are most widely used in high and moderate speed engines. Their use is not only limited in engines or machines but we can often find their use in computer also. The cams can be designed and fabricated according to our need also. Radial and tangent cams are easy to manufacture and a large amount of these cams can be manufactured within a shorter period of time.

• The whole mechanism is composed of follower arm and guide; the motion of follower can be oscillatory or reciprocating. Guide plays an important role that it guides the motion of follower in a straight line. In absence of guide the motion of the follower can be disturbed and if proper lubrication between the guide and follower is not maintained then it may also jam the cam. An arm is brought into use when the follower cannot be directly connected to operate valves.