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

PROGRAMMING
B–62754EN/01
1. GENERAL
17
CNC
X
Z
X
Z
X
Z
Part drawing
Program
Coordinate system
Command
Workpiece
Machine tool
Fig. 1.3.2 (a) Coordinate system
The following two coordinate systems are specified at different locations:
(See II–8)
1. Coordinate system on part drawing
The coordinate system is written on the part drawing. As the program
data, the coordinate values on this coordinate system are used.
2. Coordinate system specified by the CNC
The coordinate system is prepared on the actual machine tool. This
can be achieved by programming the distance from the current
position of the tool to the zero point of the coordinate system to be
set.
230
300
Program
zero point
X
Distance to the zero point of a coor-
dinate system to be set
Present tool position
Z
Fig. 1.3.2 (b) Coordinate system specified by the CNC
1.3.2
Coordinate System on
Part Drawing and
Coordinate System
Specified by CNC –
Coordinate System
Explanations
D Coordinate system

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