DXF (Drawing Exchange Format) is a widely-used, open-standard file format for exchanging CAD data between different software applications. DXF files can contain 2D and 3D design data, including lines, arcs, and curves.
The notches (drill holes) disappear on export. Solution: In your converter settings, ensure "Export Annotation Points" is checked. If the tool lacks this, it is not a "full" converter. lectra mdl to dxf converter full
However, standard DXF often strips grading. A "Full" converter preserves the graded sizes, not just the base size. not just the base size.