
10.TOOL FUNCTION B-63783EN-1/01
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Programming coordinate system
Issuing G43.4 makes the CNC use the current workpiece coordinate
system as its programming coordinate system (fixed on the table).
The programming coordinate system is used for tool center point
control.
It rotates as the table rotates.
It does not rotate when the tool head rotates.
Once G43.4 is issued, it is assumed that the subsequent X, Y, and Z
commands are issued in the programming coordinate system.
If the table rotary axis moves in the same block as for G43.4 or in a
block before G43.4, the angle of the table rotary axis is used as the
initial status of the programming coordinate system.
When C43.4 is
issued, if C = 0
Tool center point
control under way
Programming coordinate system
X
Y
Workpiece
coordinate
system
0
45
X
Y
C
Programming
coordinate system
45
C-axis reference position (note)
X
Y
45
90
X
Y
C
90
45
Note:
The term "C-axis reference position" refers to a position to which
the C-axis moves in such a way that when C** is issued for the
C-axis, graduations ** on the C-axis comes to that position.
When C43.4 is
issued, if C = 45
Tool center point
control under way
Workpiece
coordinate
system
Programming
coordinate system
Fig.10.4.14 (f)