Calibrating the effective length, 6 calibr a ting 3-d t ouc h pr obes – HEIDENHAIN TNC 620 (340 56x-03) ISO programming User Manual
Page 357

HEIDENHAIN TNC 620
357
13.6 Calibr
a
ting 3-D T
ouc
h Pr
obes
Calibrating the effective length
U
Set the datum in the spindle axis such that for the machine tool table 
Z=0
U
To select the calibration function for the touch probe
length, press the TOUCH PROBE and CAL. L soft 
keys. The TNC then displays a menu window with 
four input fields
U
Enter the tool axis (with the axis key)
U
Datum
: Enter the height of the ring gauge
U
Effective ball radius
and Effective length do not
require input
U
Move the touch probe to a position just above the ring
gauge
U
To change the traverse direction (if necessary), press
a soft key or an arrow key
U
To probe the upper surface of the ring gauge, press
the machine START button
5
Y
X
Z
HEIDENHAIN only gives warranty for the function of the 
probing cycles if HEIDENHAIN touch probes are used.
If you use probing functions in a tilted working plane, you 
must set 3-D ROT to Active for the Manual Operation and 
Automatic operating modes.
The effective length of the touch probe is always 
referenced to the tool datum. The machine tool builder 
usually defines the spindle tip as the tool datum.
