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HEIDENHAIN TNC 620 (81760x-02) User Manual

Page 507

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Calibrating a 3-D touch trigger probe (option 17) 14.8

14

TNC 620 | User's Manual

HEIDENHAIN Conversational Programming | 2/2015

507

Calibration using a calibration sphere

Proceed as follows for manual calibration using a calibration sphere:

In the

Manual Operation mode, position the ball tip above the

center of the calibration sphere

Select the calibration function: Press the

CAL. R

soft key
Enter the diameter of the sphere
Enter the safety clearance
Enter the start angle
Enter the number of touch points
Select Length measurement, if applicable
Enter Datum for length, if applicable
Start the probing procedure: Press the machine

START button. 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
Checking the 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.