Interface > Working with Data Exchange Formats > DXF and DWG > Importing and Exporting 3D Data > Importing AutoCAD 3D DXF Files as Parts
  
Importing AutoCAD 3D DXF Files as Parts
When you import an AutoCAD 3D DXF file as a part with Part selected in the Import New Model dialog box:
A single faceted solid is imported as a new part with a faceted solid.
Multiple faceted solids are also imported as a new part with multiple faceted solids on separate layers. The imported faceted solids merge into a single faceted entity in the new part.
If the faceted solids exist as one solid per layer, a flat assembly with one faceted component per faceted solid is created.
3D faces, polygonal mesh, and standard polylines are imported as faceted data, that is, surfaces or solids. Polylines are imported as wireframe entities. The imported feature consists of faceted and wireframe entities.
If the DXF file contains only standard polylines, an import feature with wireframe entities is created.
If the DXF file contains embedded exact ACIS data, the embedded exact ACIS data is skipped.
If the DXF file contains faceted data, the faceted data is imported.
When you import a feature created in AutoCAD and saved as a DXF file:
The feature is appended to an existing part as a faceted import feature.
The embedded exact ACIS data is skipped.