HEIDENHAIN TNC 620 (73498x-01) ISO programming - Manual (Page 354)

354 Manual operation and setup
13.4 D
a
tu
m set
ting without a 3-D
touc
h
pr
obe
13.4 Datum setting without a
3-D touch probe
Note
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
Datum setting with a 3-D touch probe: (see "Datum
setting with 3-D touch probe" on page 371).