HEIDENHAIN ITNC 530 - CONVERSATIONAL PROGRAMMING User Manual page 540

14.4 Datum Setting without a 3-D
Touch Probe
Note
Datum setting with a 3-D touch probe: (see page 563).
You fix a datum by setting the TNC position display to the coordinates
of a known position on the workpiece.
Preparation
U Clamp and align the workpiece
U
Insert the zero tool with known radius into the spindle
U Ensure that the TNC is showing the actual position values
540 Manual Operation and Setup