Research and Development of Open CNC System Based on PC and Motion Controller

Abstract An open CNC system based on PC and motion controller is discussed, Software and hardware of the system based on the idea of modularization construction is described. According to requirements of system management software, a kind of inheritance modular concentric rings structure as the system management software development model is designed. Then a high degree of integration, low coupling system management software is developed. Finally algorithms based on motion controller two–order interpolations are adopted, rough interpolation using Cubic b-spline curve chord segmentation interpolation algorithm. The actual application shows that the CNC system is effective.