CNC machine tools are increasingly used in the machining industry. The development of CNC machine tools is full-featured and high-performance on the one hand; on the other hand, it is a simple and practical economical CNC machine tool with basic functions of automatic machining, which is convenient for operation and maintenance. The economical numerical control system usually uses an open-loop stepping control system, the stepping motor is a driving component, and there is no detection feedback mechanism, and the positioning accuracy of the system is generally up to
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