Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 505)

Tool Tip Radius Compensation (TTRC)
Function
Chapter 21
21-21
Figure 21.17 and Figure 21.18 show examples of typical entry moves using
type B TTRC.
Figure 21.17
Tool Path for Entry Move Straight Line-to-Straight Line
0 £q £ 90
90 £q £ 180
180 £q £ 270
270 £q £ 360
E
G41
G42
Programmed
path
G41
G42
Programmed
path
G41
G42
Programmed
path
G41
G42
Programmed
path
B
A
C
Start-point
Start-point
A
D
C
B
r
r
q
q
r
r
r
q
q
A
B
C
D E r
r
r
r
r
r
A
B C r
r
r
Start-point
Start-point
G39 (Linear Generated Blocks)
G39 (Linear Generated Blocks)
r
r
r
r
G39.1 (Circular Generated Block)
G41
G42
Programmed
path
Start-point
r
r
r
A
B
C D
q
G39.1 (Circular Generated Block)
270 £q £ 360
G41
G42
Programmed
path q
Start-point
r
r
r
A
B
C D
0 £q £ 90