HEIDENHAIN MANUALplus 4110 - Manual (Page 250)

250 5 ICP Programming
5.3 Impor
ting of DXF Cont
ours
5.3 Importing of DXF Contours
Fundamentals
Contours available in DXF format can be imported into the ICP editor.
DXF contours describe contour trains for ICP cycles (recessing, cutting
and milling cycles).
For contour trains for recessing and cutting cycles, DXF layers should
contain only one contour. For contours for milling cycles multiple DXF
contours can be contained and imported.
DXF import is available as of software versions 507 807-11 and
526 488-03.
Requirements of a DXF contour or DXF file:
„ Only two-dimensional elements
„ The contour must be in a separate layer (without dimension lines,
without wraparound edges, etc.)
„ Depending on the setup of the lathe, contours for recessing or
cutting cycles must be either before or behind the workpiece.
„ No complete circles, no splines, no DXF blocks (macros), etc.
„ The imported contours may consist of no more than 4000 elements
(lines, arcs). In addition, up to 10 000 polyline points are permitted.
Preparation of contours during DXF import
The contour is converted from DXF format to ICP format during
importation. The following changes are made to the contour
representation, since there are basic differences between the DXF
and ICP formats:
„ Possible gaps between contour elements are closed
„ Polylines are transformed into linear elements
In addition, the following features, which are necessary for a ICP
contour, are specified:
„ The starting point of the contour
„ The direction of rotation of the contour
Sequence of a DXF importation:
 Selection of the DXF file
 Selection of the layer, which contains only the contour(s)
 Import of the contour(s)