Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 403)

Axis Motion
Chapter 14
14-27
It is also possible to use polar programming when the angles are
programmed in absolute mode and the radii are in incremental. See
Example 14.11 and Figure 14.15.
Example 14.11
Polar Programming - Angle in Absolute, Radii in Incremental
N10 G00 X0Y0 F500; rapid move to X0 Y0
N20 G90 G81 X3.Y0 R3. Z10.; drilling cycle at X3 Y0
N30 G16; polar programming
N40 G91 X4. G90 Y135.; radius of 4 at 135 deg abs
N50 Y225.; still radius of 4 at 225 deg abs
N60 Y315.; still radius of 4 at 315 deg abs
N70 G15 X6. Y0 cancel polar, move to X6 Y0
N80 G16; polar programming
N90 G91 X8. G90 Y135.; radius of 8 at 135 deg abs.
N100 Y225.; still radius of 8 at 225 abs.
N110 Y315.; still radius of 8 at 315 abs.
N120 M30; end
Figure 14.15
Results of Example 14.11
135
•
N10
225
•
225
•
315
•
315
•
135
•
N60
N110
N70
N90
+X
+Y
4
4
4
8
8
8