HEIDENHAIN TNC 620 User Manual page 265

The following icons are displayed by the TNC only in certain modes.
Icon Setting
Contour assumption mode:
The tolerance specifies how far apart
neighboring contour elements may be from
each other. You can use the tolerance to
compensate for inaccuracies that occurred
when the drawing was made. The default
setting is 0.001 mm
Point assumption mode:
Specify whether the TNC should display the
tool path as a dashed straight line during
selection of machining positions
Path optimization mode:
The TNC optimizes the tool traverse movement
to give the shortest traverse movements
between the machining positions. Optimization
is reset with repeated actuations
Arc mode:
Arc mode determines whether circles should
be produced in C format or CR format, e.g. for
cylinder coat interpolations in the NC program.
Please note that you must set the correct unit of
measure, since the DXF file does not contain any
such information.
If you want to generate programs for older TNC
controls, you must limit the resolution to three
decimal places. In addition, you must remove the
comments that the DXF converter inserts into the
contour program.
The TNC displays the active basic settings in the
status bar of the screen.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
DXF converter (option 42)
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