Abstract:Non RTCP programming needs complex geometric calculation on the tool locus in advance according to fiveaxis machine tool structure and characteristic parameters,to obtain the coordinate data of each axis motion control.RTCP programming is a direct programming method using three axis coordinate of the cutter locus and vector of rotated angle,the complex calculation of actual control coordinates of each axis is carried out automatically by the machine tool system.In comparison,the RTCP program has nothing to do with machine tool structure and characteristic parameters,and it can simplify the relationship between CAM programming and machine operator.