HEIDENHAIN TNC 620 User Manual page 525

Calibration with a stud or calibration pin
Proceed as follows for manual calibration with a stud or calibration
pin:
In the Manual operation mode, position the ball
tip above the center of the calibration pin
Select the calibration function: Press the CAL. R
soft key
Enter the outside diameter of the stud
Enter the safety clearance
Enter the start angle
Enter the number of touch points
Probe: Press the NC START key
The 3-D touch probe probes all required touch
points in an automatic probing routine and
calculates the effective ball-tip radius. If probing
from opposite orientations is possible, the TNC
calculates the center offset.
Check results
Press the OK soft key for the values to take effect
Press the END soft key to terminate the calibrating
function.
The TNC logs the calibration process in
TCHPRMAN.html.
In order to be able to determine the ball-tip center
misalignment, the TNC needs to be specially
prepared by the machine manufacturer.
Refer to your machine manual.
HEIDENHAIN | TNC 620 | ISO Programming User's Manual | 9/2016
Calibrating 3-D touch probes (option 17) 14.8
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525