Aim\ In order to fast drawing precise cam profile

the paper gives polar coordinates equations of it. Methods\ By using of VB6.0 visible compiling program technique and powerful function of processing graph. Results\ Calculates precisely geometric parameters of per position and draws cam profile as the follower move according to common motion laws. Conclusion\ The result shows that it has quick speed and correct calculation. With the method

we also can design cam with flat face follower and oscillating follower.