Siemens SINUMERIK 840D sl Function Manual page 587

Tool radius
The tool radius is automatically taken into account with respect to the groove side wall (see
figure). The full functionality of the plane tool radius compensation is available (steady
transition at outer and inner corners as well as solution of bottleneck problems).
Figure 7-37
; Example program, which guides the tool after transformation selection
; on path I via path II back to the starting position
; (machine data see "Data Description", Example X-Y-Z-C kinematics):
N1 SPOS=0;
N5 G0 X25 Y0 Z105 CC=200 F5000 G64
N10 TRACYL(40.)
N20 G19 G90
N30 T1 D1
N40 G1 X20
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Groove with wall compensation, cylinder coordinates (simplified sketch)
M1: Kinematic transformation
; Take-over of spindle into rotary axis
operation
; Positioning of machine above groove
center
;Transformation selection with reference
diameter
:40 mm
; Operating plane is cylinder surface
; Tool selection, can also be before
TRACY (..)
;Infeed tool to groove base
7.10 Examples
587