Cylindrical cams of the multispindle automatic lathe drive the radial and axial slides of the lathe by means of lever mechanisms and are made of thick metal sheet segments, folded on cylindrical drums of the command shaft. Passing from high speed, of the slide to its low speed is made by means of connecting radiuses on the unfolded profile of the cam. As a result, an acceleration of the slide occurs. In the paper, the relationship between slide`s acceleration, connecting profile radius and drum`s radius is underlined.