Siemens SINUMERIK 880 GA2 Programming Guide

9 Tool Offsets 05.91
9.3 Tool offset using tool nose radius compensation (TNRC)
9.5 G40/G41/G42 Intersection cutter radius path compensation (CRC)
G40 No intersection cutter radius path compensation
G41 Direction of tool travel to the left of workpiece
G42 Direction of tool travel to the right of workpiece
The compensation of the cutter radius is effective in the selected plane (G16 to G19). The
length compensation of the cutter is always perpendicular to the selected plane.
When mirroring is used, the path travelled by the tool is as follows (taking the sign into con-
sideration):
Sign of cutter
radius
compensation
value
G41 G42
Right of cutterLeft of cutterLeft of cutterRight of cutter
Both axes mirrored
or both axes not
mirrored
One axis mirroredOne axis mirrored
Both axes
mirrored or both
axes not mirrored
–
Left of cutter Right of cutter Right of cutter Left of cutter+
Selection and cancellation of intersection cutter radius path compensation
This function can only be selected if G00 or G01 is active. G40, G41 and G42 can be pro-
grammed in a block without paths. They are not active however unless a movement has been
programmed in at least one axis.
Example: Selection
N10 G01 G17 G41 D07 X . . . Y . . .
L
F
N15 Z . . .
L
F
N10 At the end of this block the compensated path has been reached in the selected plane.
Only the radius compensation value is incorporated.
N15 The tool length compensation is incorporated.
or
N10 G17
L
F
N15 G41 D07
L
F
N20 G01 X . . . Y . . .
L
F
N25 Z . . .
L
F
N10 Selection of plane
N15 Selection of compensation
N20 At the end of this block the compensated path has been reached in the selected plane.
Only the radius compensation value is incorporated.
N25 The tool length compensation is incorporated.
9–8
© Siemens AG 1991 All Rights Reserved 6ZB5 410-0HD02
SINUMERIK 880, (PG)

Siemens SINUMERIK 880 GA2 Specifications

General

Brand	Siemens
Model	SINUMERIK 880 GA2
Category	Control Unit
Language	English