HEIDENHAIN TNC 620, User Manual

Page: 226 / 521

Setup | Compensating workpiece misalignment with 3-D touch probe (option 17)
5
Determining a 3-D basic rotation
You can measure the inclined position of any tilted surface by
probing three positions. The
Probe in plane
function enables you to
measure this inclined position and save it as a 3-D basic rotation in
the preset table.
Operating and programming notes:
The sequence and position of the touch points
determines how the control will calculate the
orientation of the plane.
With the first two points, you specify the direction
of the reference axis. Define the second point in the
positive direction of the desired reference axis. The
position of the third point determines the direction of
the minor axis and of the tool axis. Define the third
point in the positive Y axis of the desired workpiece
coordinate system.
1st point is on the reference axis
2nd point is on the reference axis, in a positive
direction from the first point
3rd point is on the minor axis, in a positive direction
of the desired workpiece coordinate system
The optional entry of a reference angle enables you to define the
nominal direction of the probed plane.
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HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 01/2022