Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 500)

Tool Tip Radius Compensation (TTRC)
Function
Chapter 21
21-16
Figure 21.11 through Figure 21.15 show examples of typical exit moves
using type A TTRC. All examples assume that the number of non-motion
blocks before the designation of the G40 command have not exceeded the
number allowed as determined by your system installer in AMP.
Figure 21.11
Tool Path for Exit Move Straight Line-to-Straight Line
End-point
G42
Programmed
path
G41
G42
Programmed
path
G41
G42
Programmed
path
G41
G42
Programmed
path
G41
End-point
q
q
q
q
r
r
r
r
r
r
r
r
End-point
End-point
0 £q £ 90
0 £q £ 90
0 £q £ 90 0 £q £ 90