Abstract
Lost–motion is a major disturbance to the contouring accuracy of NC machine tools employing plain slideways. In order to solve such problems, many compensation methods for lost–motion have been developed to improve them. However, these conventional methods have not been able to compensate some behaviors. In this paper, lost–motion characteristics were measured under various sliding speed. From these results, a new experimental model as a function of reverse motion error, reduction of lost–motion and table lift is proposed. Measured lost–motion errors coincide well with simulated results.
