HEIDENHAIN iTNC 530 (34049x-08) ISO programming - Manual (Page 240)

240 Programming: Data transfer from DXF files or plain-language contours
7.
1 Pr
ocessing DXF files (sof
tw
ar
e
option)
Basic settings
The third soft-key row has various possibilities for settings:
Setting Soft key
COLOR NORMAL/INVERTED: Changing the
color scheme
3-D MODE/2-D MODE: Change between 2-D
and 3-D mode
UNIT OF MEASURE MM/INCH: Enter the unit of
measurement of the DXF file. The TNC then
outputs the contour program in this unit of
measurement
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 depends on the
extent of the entire DXF file
The resolution specifies how many decimal
places the TNC should use when generating the
contour program. Default setting: 4 decimal
places (equivalent to resolution of 0.1 µm when
the unit of measure MM is active)
The mode for point transfer on circles and circle
segments determines whether the TNC
automatically loads the circle center point when
selecting machining positions via mouse click
(OFF), or if additional points on the circle should
be shown as well.
 OFF
Do not show additional points on the circle.
Assume the circle center point directly when
a circle or arc is clicked.
 ON
Show
additional points on the circle.
Assume each desired circle point by
clicking it
Mode for point assumption: Specify whether the
TNC should display the tool path during selection
of machining positions.
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.