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

PROGRAMMING
B–62764EN/01
15. COMPENSATION FUNCTION
359
When a tool with a rotation axis (C–axis) is moved in the XY plane during
cutting, the normal direction control function can control the tool so that
the C–axis is always perpendicular to the tool path (Fig. 15.11 (a)).
Tool
Tool
Programmed tool path
Normal direction (in
which the tool moves)
C–axis
C–axis
Fig15.11 (a) Sample Movement of the tool
G code
Function Explanation
G41.1 or G151
Normal direction
control left
If the workpiece is to the right of the
tool path looking toward the direc-
tion in which the tool advances, the
normal direction control left (G41.1
G151) f ti i ifi d
G42.1 or G152
Normal direction
control right
or
G151)
f
unc
ti
on
i
s spec
ifi
e
d
.
After G41.1 (or G151) or G42.1 (or
G152) is specified, the normal
direction control function is en-
abled
(
normal direction control
G40.1 or G150
Normal direction
control cancel
(
mode).
When G40.1 (or G150) is speci-
fied, the normal direction control
mode is canceled.
15.11
NORMAL DIRECTION
CONTROL
(G40.1, G41.1, G42.1
OR G150, G151,
G152)
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