
PROGRAMMING
B–64124EN/01
14. COMPENSATION FUNCTION
297
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. 14.9 (a)).
Tool
Tool
Programmed tool path
Normal direction (in
which the tool moves)
C–axis
C–axis
Fig. 14.9 (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 le
ft
(G41.1 or G151) function is speci-
G42.1 or G152
Normal direction
control right
(G41.1 or G151) function is speci-
fied.
After G41.1 (or G151) or G42.1 (o
G152) is specified, the norma
direction control function is en
-
abled (normal direction control
G40.1 or G150
Normal direction
control cancel
abled (normal direction control
mode).
When G40.1 (or G150) is spec
fied, the normal direction contro
mode is canceled.
14.9
NORMAL DIRECTION
CONTROL
(G40.1, G41.1, G42.1
OR G150, G151,
G152)
Format