Siemens sinumerik 840D sl Function Manual page 864

Example of inside corners
Figure 2-10
Example:
N10 A0 B0 X0 Y0 Z0 F5000
N20 T1 D1
N30 TRAORI(1)
N40 CUT3DC
N50 ORID
N60 G42 X10 Y10 G451
N70 Y60
N80 A3=1 B3=0 C3=1
N90 X60 Y90
N100 G40 X... Y...
...
N190 CDOF
N200 M30
Special functions: 3D Tool Radius Compensation (W5)
Function Manual, 11/2006, 6FC5397-2BP10-2BA0
Change in orientation at an inside corner
; Radius=5
; Transformation selection
;3D TRC selection
; TRC selection
; Change in orientation of inside corners generated from
; N70 and N90
Detailed description
2.1 Circumferential milling
19