HEIDENHAIN TNC 320 - Page 567

Manual Operation and Setup | Presetting with a 3-D touch probe
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HEIDENHAIN | TNC 320 | ISO Programming User's Manual | 10/2017
567
Outside circle:
Position the touch probe at a position near the
first touch point outside of the circle
Select the touch probe function: Press the
PROBING CC soft key
Select the soft key for the desired probing
direction
Probe: Press the NC Start key. The touch
probe probes the inside wall of the circle in the
selected direction. Repeat this process. After
the third probing operation, you can have the
control calculate the center (four touch points are
recommended)
Terminate the probing procedure and switch to
the evaluation menu: Press the EVALUATE soft
key
Preset: Enter the coordinates of the preset
Apply with the SET PRESET soft key
Further information: "Writing measured values
from the touch probe cycles to a datum table",
page 547
Further information: "Writing measured values
from the touch-probe cycles to the preset table",
page 548
To terminate the probe function, press the END
soft key
Once the probing routine is completed, the control displays the
current coordinates of the circle center and the circle radius.