老外用VB写的CNC仿真程序源码，可以载入G Code，还有OpenGL的3D图,Written in VB source CNC simulation program

数控切割控制系统,需要DLPORTIO,通过控制8位的并口的电位高低来4路控制数控切割机-NC cutting control system, required DLPORTIO, by controlling the parallel port 8 to the potential level of 4-way control of CNC cutting machine

数控自动编程系统，可以通过所画的图形生成走刀路线，然后生成代码-CNC automatic programming system can be generated by the graphics drawing tool line, and then generate code