Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 544)

Cutter Diameter Compensation
(G40, G41, G42)
Chapter 21
21-26
Figure 21.21 and Figure 21.22 show examples of typical exit moves using
type B cutter compensation. All examples assume that the number of
non-motion blocks before the designation of the G40 command has not
exceeded the number allowed as determined by the system installer in
AMP.
Figure 21.21
Tool Path For Exit Move Straight Line-to-Straight Line
0
• • •
90
90
• • •
180 180
• • •
270
270
• • •
360
A
Programmed
path
G41
G42
Programmed
path
G41
G42
Programmed
path
G41
G42
Programmed
path
G41
G42
•
•
•
•
A
A B
C
D
E
End-point
C
B A
B
C End-point
End-point
E
End-point
B
C
D
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
G39 (Linear Generated Blocks)
G39.1 (Circular Generated Block) G39 (Linear Generated Blocks)
0
• • •
90
G42
G41
Programmed
path
•
r
r
r
End-point
A B
C
D
G39.1 (Circular Generated Block)
G42
G41
Programmed
path
End-point
•
r
r
r
270
• • •
360
A B
C
D