HEIDENHAIN TNC 620 User Manual page 238

5
Resetting to the preset 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 preset 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°.
Finding the angle between the angle reference axis and a
workpiece edge
Select the probe function by pressing the
PROBING ROT soft key
Rotation angle: If you wish to restore the current
basic rotation later, note the value that appears
under Rotation Angle
Perform a basic rotation with the workpiece edge
to be compared
Further information: "Compensating workpiece
misalignment with 3-D touch probe (option 17)",
Page 221
Press the PROBING ROT soft key to display the
angle between the angle reference axis and the
workpiece edge as the rotation angle
Cancel the basic rotation, or restore the previous
basic rotation
Set the rotation angle to the value that you
previously wrote down
238
Setup | Presetting with a 3-D touch probe (option number 17)
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022