
09 00.11.21 K.Yamamuro Revised to edition 09
08 00.06.22 T.Watanabe Revised to edition 08 T.Endo
01 99.03.10 K.Yamamuro New-registered T.Endo
A-63537E
ED DATE DESIG.
DESCRIPTION 75/134
SHEET
TITLE
FANUC Series 16i/18 i -TA
Compound Machining Function
TITLE
CUST.DRAW.NO.
X, Y, Z: Coordinates in the original coordinate system
(Wookpiece coordinate system)
x, y, z: Program value
(Coordinates in the program coordinate system)
x1, y1, z1: Center of rotation of the conversion
Px, Pz: Distance from the imaginary origin to the center of rotation of
B-axis (parameters)
B axis rotate
center position
+Z
+Z’
(B0°)
Program origin
EXOFSx
EXOFSz
The direction of spindle in the
actual machining and the
direction of spindle when the
former three dimensional
coordinate conversion is only
Workpiece origin
(B0°)
OFS
• Example of machining
the end face of
workpiece as B=0°
• Equation for three-
dimensional coordinate
conversion
Note
• Please command G68 on the Z-X plane. P/S alarm 47 occurs in
commanding G68 on other planes.
sinθ
0
cosθ
X
Y
Z
0
1
0
Px
0
Pz
-cosθ
0
sinθ
Px
0
Pz
cosθ
0
-sinθ
0
1
0
sinθ
0
cosθ
x
y
z
= - + +
x1
y1