
B-63782EN/01 NC FUNCTIONS 21.MANUAL OPERATION
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21.8 CHANGING TOOL LENGTH COMPENSATION IN THE
LONGITUDINAL DIRECTION OF THE TOOL
Select the mode of changing the tool length compensation in the
longitudinal direction of tool when both the following modes are
selected: Mode of tool length compensation in the longitudinal
direction of the tool (G43.1) and mode of manual handle interrupt.
Then rotate the handle of the manual pulse generator. The tool length
compensation is changed in the longitudinal direction of the tool.
The change is cleared to zero when a reset or the G49 command is
executed or when the offset number is changed.
21.9 TOOL HOLDER OFFSET
The length unique to the machine tool from the rotation center of a
rotary axis (A and B axes, A and C axes, B and C axes) around which
the tool axis rotates to the tool mounting position is called the "tool
holder offset." This tool holder offset can be set in parameter No. 7548
in addition to the tool length offset.
Tool length offset
Tool holder offset