FANUC Series 16/18/160/180-Model C for Lathe Operator Manual

PROGRAMMING
1. GENERAL
B–62754EN/01
18
The tool moves on the coordinate system specified by the CNC in
accordance with the command program generated with respect to the
coordinate system on the part drawing, and cuts a workpiece into a shape
on the drawing.
Therefore, in order to correctly cut the workpiece as specified on the
drawing, the two coordinate systems must be set at the same position.
The following method is usually used to define two coordinate systems
at the same location.
1. When coordinate zero point is set at chuck face
X
Z
40
150
40
60
Workpiece
Fig. 1.3.2 (c) Coordinates and dimensions on part drawing
X
Z
Workpiece
Fig. 1.3.2 (d) Coordinate system on lathe as specified by CNC
(made to coincide with the coordinate system on part drawing)
D Methods of setting the
two coordinate systems
in the same position

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