The control accuracy is directly related to the economic benefits, in the high precision mechanical coordination, perfect control measures are the key to improve the control precision:
     (1) reduce the steady-state error of the system. Under the premise of ensuring the system stability, the system can improve the system's magnification and make the system as the two order system as possible, so that the steady state error of the system is zero.
     (2) in the design of the time, the actual time can be detected in real time for the time being used to make the cutting tool delay time to start time. If the result is ideal, the average value is obtained by using the results of its multiple results.
     (3) in order to carry out the accuracy of the measurement and the operation speed of the board, the side - side roller is used to carry out the test plate, which can achieve the purpose of the design.
     (4) the use of independent of the frequency converter to the power supply, reduce the high frequency of disturbance, improve the accuracy.