# Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 13.FUNCTIONS TO SIMPLIFY PROGRAMMING
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- Drilling axis
Although canned cycles include tapping and boring cycles as well as
drilling cycles, in this chapter, only the term drilling will be used to
refer to operations implemented with canned cycles.
The drilling axis is a basic axis (X, Y, or Z) not used to define the
positioning plane, or any axis parallel to that basic axis.
The axis (basic axis or parallel axis) used as the drilling axis is
determined according to the axis address for the drilling axis specified
in the same block as G codes G73 to G89.
If no axis address is specified for the drilling axis, the basic axis is
assumed to be the drilling axis.
Table 13.1 (b) Positioning plane and drilling axis
G code Positioning plane Drilling axis
G17 Xp-Yp plane Zp
G18 Zp-Xp plane Yp
G19 Yp-Zp plane Xp
Xp : X axis or an axis parallel to the X axis
Yp : Y axis or an axis parallel to the Y axis
Zp : Z axis or an axis parallel to the Z axis
Assume that the U, V and W axes be parallel to the X, Y, and Z axes
respectively. This condition is specified by parameter No. 1022.
G17 G81 Z _ _: The Z axis is used for drilling.
G17 G81 W _ _: The W axis is used for drilling.
G18 G81 Y _ _: The Y axis is used for drilling.
G18 G81 V _ _: The V axis is used for drilling.
G19 G81 X _ _: The X axis is used for drilling.
G19 G81 U _ _: The U axis is used for drilling.
G17 to G19 may be specified in a block in which any of G73 to G89 is
not specified.
CAUTION
Switch the drilling axis after canceling a canned
cycle.
NOTE
A parameter FXY (No. 6200 #0) can be set to the Z
axis always used as the drilling axis. When FXY=0,
the Z axis is always the drilling axis.