HEIDENHAIN 548431-05, User Manual, Page: 56 / 722

Introduction and fundamentals | Tool dimensions
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
1.8 Tool dimensions
The control requires information on the specific tools for a variety
of tasks, such as positioning the axes, calculating the cutting radius
compensation or the proportioning of cuts.
Tool length
All programmed and displayed position values are given with
respect to the distance between the tool tip and workpiece datum.
Since the control only knows the absolute position of the tool
carrier (slide), it needs the dimensions
XL and ZL to calculate and
display the position of the tool tip.
Tool compensation
The tool tip is subjected to wear during machining processes. To
compensate for this wear, the control uses compensation values.
The compensation values are managed independent of the values
for length. The system automatically adds the compensation values
to the values for length.