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

数控线切割机编程中，“三切圆”程序中作一圆与已知的一个圆和两条直线相切-EDM digital control programming，"tangent circle with three elements" programming To make a circle tangent to known a circle and two straight lines