HEIDENHAIN TNC 426 (280 476) - Manual (Page 49)

22 2 Manual Operation and Setup
2.4 D
a
tu
m Set
ting(Without a 3-D T
o
uc
h Pr
obe)
2.4 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
7 7 7 7 Clamp and align the workpiece.
7 7 7 7 Insert the zero tool with known radius into the spindle.
7 7 7 7 Ensure that the TNC is showing the actual position values.
For datum setting with a 3-D touch probe, refer to the
new Touch Probe Cycles Manual.