HEIDENHAIN TNC 620 User Manual page 533

Measuring workpiece dimensions
Select the probing function: Press the PROBING
POS soft key
Position the touch probe at a position near the first
touch point A
Select the probing direction with the soft key
Probe: Press the NC START key
Note the value shown as the datum (only if the
previously set datum remains effective)
Datum: Enter "0"
Cancel the dialog: Press the END key
Select the probing function again: Press the
PROBING POS soft key
Position the touch probe at a position near the
second touch point B
Select the probing direction with the soft key:
Same axis but from the opposite direction to the
first probing routine.
Probe: Press the NC START key
The Measured Value display shows the distance between the two
points on the coordinate axis.
To return to the datum that was active before the length
measurement:
Select the probing function: Press the PROBING POS soft key
Probe the first touch point again
Set the datum to the value that you wrote down previously
Cancel the dialog: Press the END key
Measuring angles
You can use the 3-D touch probe to measure angles in the working
plane. You can measure
The angle between the angle reference axis and a workpiece
edge; or
the angle between two sides
The measured angle is displayed as a value of max. 90°.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
Datum setting with a 3-D touch probe 14.10
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