Coordinate System; Workpiece Coordinate System - Wuhan Huazhong Numerical Control Co., Ltd HNC-18iT v4.0 Programming Manual

1.4.3 1.4.3 Workpiece Workpiece
1.4.3 1.4.3 Workpiece Workpiece Coordinate
The coordinate system is set on a workpiece. The data in the NC program is from the

workpiece coordinate system.

Example: Those four points can be defined on workpiece coordinate system:
P1 corresponds to X25 Z-7.5
P2 corresponds to X40 Z-15
P3 corresponds to X40 Z-25
P4 corresponds to X60 Z-35
Figure 1.11 Example of defining points on workpiece coordinate system
Coordinate Coordinate System System

Coordinate System

System
Y+
Z-
W W W W
X-
Y-
Figure 1.10 Workpiece Coordinate System
P4
P3
25
35
X+
90°
90° 90°
Z+
X
Φ60
P2
Φ40
P1
Φ25
7.5
15
9
1. General
Z