
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 73/134
SHEET
TITLE
FANUC Series 16i/18 i -TA
Compound Machining Function
TITLE
CUST.DRAW.NO.
3.2.4 Coordinate Value Compensation in 3-D Coordinate conversion according to the Angle
of B-axis (M mode)
When the origin of B axis rotate center position and the one of the basic
workpiece coordinate system is differed by parameter 13041 and 13042,
it is not possible to position the tool at the direction of a correct tool and a
correct position even if three-dimensional-coordinates conversion is done
under the given data on the drawing. It is the reason why the former three-
dimensional coordinates conversion does not consider the rotation of B-axis.
(B0°)
OFS
EXOFSx
EXOFSz
The direction of spindle in doing three-
dimensional coordinates conversion for
The direction of spindle in machining
workpiece actually (B=-90)
Workpiece origin
Program origin
B axis rotate
center position
+X
• Example of machining
the end face of
workpiece as B=-90°