HEIDENHAIN TNC 620 User Manual page 268

7
Programming: Data Transfer from CAD Files
7.3 DXF converter (option 42)
Selecting a datum on a single element
Select the mode for specifying the datum
Click the desired element with the mouse: The
TNC indicates possible locations for datums on the
selected element with stars
Click on the star you want to select as the datum.
The TNC sets the datum symbol to the selected
location. If the selected element is too small, then
use the zoom function.
Selecting a datum on the intersection of two elements
Select the mode for specifying the datum
Click the first element (straight line, complete
circle or circular arc) with the left mouse button.
The TNC indicates possible locations for datums
on the selected element with stars. The element
is color-highlighted
Click on the second element (straight line,
complete circle or circular arc) with the left mouse
button. The TNC sets the datum symbol on the
intersection
The TNC calculates the intersection of two elements
even if it is on the extension of one of these
elements.
If the TNC calculates multiple intersections, it selects
the intersection nearest the mouse-click on the
second element.
If the TNC cannot calculate an intersection, it
rescinds the marking of the element.
If a datum is set, the color of the icon changes Setting a datum.
Delete a datum by clicking on the
268
icon.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015