
B–61404E/08
8. COORDINATE VALUE
AND DIMENSION
PROGRAMMING
97
N1 G17 G90 G16;
Specifying the polar coordinate command and selecting the XY plane
Setting the zero point of the workpiece coordinate system as the origin
of the polar coordinate system
N2 G81 X100.0 Y30.0 Z–20.0 R–5.0 F200.0 ;
Specifying a distance of 100 mm and an angle of 30 degrees
N3 G91 Y120.0 ;
Specifying a distance of 100 mm and an angle of +120 degrees
N4 Y120.0 ;
Specifying a distance of 100 mm and an angle of +120 degrees
N5 G15 G80 ;
Canceling the polar coordinate command
In the polar coordinate mode, specify a radius for circular interpolation
or helical cutting (G02, G03) with R.
Axes specified for the following commands are not considered part of the
polar coordinate command:
– Dwell (G04)
– Changing an offset value with a program (G10)
– Setting the local coordinate system (G52)
– Converting the workpiece coordinate system (G92)
– Selecting the machine coordinate system (G53)
– Stored stroke check (G22)
– Coordinate system rotation (G68)
– Scaling (G51)
D Specifying angles with
incremental commands
and a radius with
absolute commands
Limitations
D Specifying a radius in
the polar coordinate
mode
D Axes that are not
considered part of a
polar coordinate
command in the polar
coordinate mode