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

B-63324EN/03 PROGRAMMING 4.INTERPOLATION FUNCTIONS
- 103 -
angle of 90° or less, the vector may not be produced in the correct
direction.
Fig.4.14 (d) Vector 3
- Sample program of three-dimensional tool offset
The system is in the spline interpolation mode included in the three-
dimensional tool compensation mode from N120 to N600 of the
program below:
O1000 ; Specified point Offset point
N110 G01 G41 X_Y_ Z_ I_ J_ K_ D_ F ; : P
1
Q
1
N120 G06.1 ; : P
2
Q
2
N130 X_ Y_ Z_ ; : P
3
Q
3
N140 X_ Y_ Z_ ; : P
4
Q
4
N150 X_ Y_ Z_ ; : P
5
Q
5
:
N600 X_ Y_ Z_ ; : P
n
Q
n
N610 G01 X_ Y_ Z_ ; : P
n+1
K : Three-dimensional tool compensation vector specified by G41
V
1
to Vn :Three-dimensional tool compensation vector used in the
spline interpolation mode (V1 = K)
Fig.4.14 (e) Three-dimensional tool offset
Offset path
|θ| < 90°
˘
Q
1
V
1
P
1
Q
2
V
2
P
2
Q
3
V
3
P
3
Q
4
V
4
P
4
Q
5
V
5
P
5
P
6
V
i
V
i+1
Q
n
V
n-1
P
n-2
P
n-1
P
n
V
n
P
n+1
Path specified by the program
K
P
i+1
P
i
P
i-1
θ

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