HEIDENHAIN TNC 128 (77184x-01) - Manual (Page 300)

300 Manual operation and setup
1
1
.6 Calibr
a
ting a 3-D t
o
uc
h pr
obe
Proceed as follows for manual calibration using a calibration ring:
 In the Manual Operation mode, position the ball tip inside the bore
of the ring gauge
 Select the calibration function: Press the CAL. R soft
key
 Enter the diameter of the ring gauge
 Enter the safety clearance
 New cal. spindle angle: Spindle angle that is used for
the calibration. The TNC uses CAL_ANG from the
touch probe table as a default value. If you change the
value, the TNC saves the value to the touch probe
table during calibration
 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
 Check the results (change the values if required)
 Press the OK soft key for the values to take effect
 Press the END soft key to terminate the calibrating
function
In order to be able to determine the ball-tip center offset,
the TNC needs to be specially prepared by the machine
manufacturer. The machine manual provides further
information.