HEIDENHAIN TNC 640 User Manual page 727

Manual Operation and Setup | Presetting with a 3-D touch probe
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:
from the touch probe cycles to a datum table",
page 706
Further information:
from the touch-probe cycles to the preset table",
page 707
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.
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
"Writing measured values
"Writing measured values
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