Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 529)

Cutter Diameter Compensation
(G40, G41, G42)
Chapter 21
21-11
Figure 21.9 through Figure 21.11 show examples of typical entry moves
using type A cutter compensation:
Figure 21.9
Tool Path for Entry Move Straight Line-to-Straight Line
0
• • •
90 90
• • •
180
270
• • •
360 180
• • •
270
G41
Programmed
path
G42
G41
Programmed
path
G42
G41
Programmed
path
G42
G41
Programmed
path
G42
Start-point
Start-point
Start-point
Start-point
•
•
•
•
r
r r
rr
r
r
r
r