
8.TOOL FUNCTION / TOOL COMPENSATION FUNCTION NC FUNCTION B-63942EN/02
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8.23 CHANGING ACTIVE OFFSET VALUE WITH MANUAL
MOVE
In the following cases, this function allows a specified offset value
(tool length compensation value, cutter compensation value, or
workpiece origin offset value) to be changed by automatically adding
the amount of movement made along an axis by manual feed to the
value having the currently valid offset number or the workpiece
coordinate system.
• Performing rough machining and semifinish machining with one
tool
• Fine-tuning a tool length compensation or cutter compensation
value
• Fine-tuning the workpiece origin offset value that was set at the
setup time
Tool after change Tool before change
Tool compensation value
Z
Z
When, for example, the tip of a tool is broken, so the tool has to be
replaced with another one, these tools are different in length. In this
case, by performing a manual feed over a certain distance, the tool
compensation value is automatically added to adjust the tool length.