HEIDENHAIN TNC 640 (34059x-05) - Manual (Page 260)

Programming: Data Transfer from CAD Files
7.3 DXF converter (Option #42)
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TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 1/2015
7.3 DXF converter (Option #42)
Application
DXF files can be opened directly by the TNC, in order to extract
contours or machining positions, and save them as conversational
programs or as point files. Conversational programs acquired in this
manner can also be run by older TNC controls, since these contour
programs contain only
L and CC/C blocks.
If you process DXF files in the Programming operating mode, the
TNC generates contour programs with the file extension
.H and
point files with the extension
.PNT by default. However, you can
choose the desired file type in the saving dialog. Furthermore,
you can also save the selected contour or the selected machining
positions to the clipboard of the TNC and then insert them directly
in an NC program.
The file to be processed must be stored on the hard
disk of your TNC.
Before loading the file to the TNC, ensure that the
name of the file does not contain any blank spaces or
illegal special characters, see "File names", page 115.
The TNC supports the most common DXF format,
R12 (equivalent to AC1009).
The TNC does not support binary DXF format. When
generating the DXF file from a CAD or drawing
program, make sure that you save the file in ASCII
format.