1. General9.4.3.4.3.4.3.4.3 orkpieceorkpieceorkpieceorkpieceCoordinateCoordinateCoordinateCoordinate SystemSystemSystemSystemThe coordinate system is set on a workpiece. The data in the NC program is from theorkpiece coordinate system.90°Y+WWWWZ+X-X+Y-Z-90°90°Figure 1.10 Workpiece Coordinate SystemExample: Those four points can be defined on workpiece coordinate system:P1 corresponds to X25 Z-7.5P2 corresponds to X40 Z-15P3 corresponds to X40 Z-25P4 corresponds to X60 Z-35P4P3 P2P1ZXΦ60Φ40Φ253525157.5Figure 1.11 Example of defining points on workpiece coordinate system
