FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
B–62764EN/01
15. COMPENSATION FUNCTION
267
WARNING
1 When G45 to G48 is specified to n axes (n=1–6) simultaneously in a motion block, offset is
applied to all n axes.
When the cutter is offset only for cutter radius or diameter in taper cutting, overcutting or
undercutting occurs.
Therefore, use cutter compensation (G40 or G42) shown in II–15.4 or 15.5.
2 G45 to G48 (tool offset) must not be used in the G41 or G42 (cutter compensation) mode.
Shape actually cut
Desired
shape
Overcutting
Y axis
Undercutting
G01 X_ F_ ;
G47 X_ Y_ D_ ;
Y_ ;
G01 G45 X_ F_ D_;
X_ Y_ ;
G45 Y_ ;
X axis
Desired shape
Shape actually cut
Y axis
X axis

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