Cutting plotter accuracy requirements are now not limited to the movement accuracy of the machine, electromagnetic interference and mechanical vibration of the error and compensation more and more attention.
Improve the control accuracy of computer cutting plotter: the use of high-speed CNC engraving and milling machine interpolation technology to achieve continuous feed of small blocks, the CNC control unit refinement, and high-resolution position detection device, the traditional stepper motor control To full servo motor control, the use of feedforward control and nonlinear control methods to improve the accuracy of cutting plotter.
The backlash compensation, the belt pitch error compensation and the cutter offset error compensation are used to compensate the mechanical error and spatial error of the cutting plotter. The results show that the application of the integrated error compensation technique can reduce the machining error by 60% ~ 80%.