HEIDENHAIN TNC 620 User Manual page 514

14
Manual Operation and Setup
14.8 Calibrating a 3-D touch trigger probe
Calibrating the effective length
HEIDENHAIN only warrants the function of the touch
probe cycles if HEIDENHAIN touch probes are used.
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.
Set the datum in the spindle axis such that for the machine tool
table Z=0.
Select the calibration function for the touch
probe length: Press the CAL. L soft key. The TNC
displays the current calibration data
Datum for length: Enter the height of the ring
gauge in the menu window
Move the touch probe to a position just above the
ring gauge
To change the traverse direction (if necessary),
press a soft key or an arrow key
Probe surface: Press NC START key
Check results
Press the OK soft key for the values to take effect
Press the CANCEL soft key to terminate the
calibrating function. The TNC logs the calibration
process in TCHPRMAN.html.
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HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015