See the following paragraphs for the restrictions of 3D DXF import, and the instructions on importing data from a 3D DXF file.
Note the following points when importing 3D DXF files:
Round tripping does not exist in TEL file imports. This means that the import data is used to create new objects in the model, not to update existing ones. All existing objects and data are maintained.
All lines in these layers become 1D analysis elements.
Arcs and circles in the selected layers are excluded without a warning.
Blocks are not handled, and no warnings are issued.
Polylines in the selected layers are excluded without a warning.
3D solids in the selected layers are excluded without any warning.
2D faces for 3D objects in the selected layers are excluded without a warning.
All ends of lines in the selected layers become nodes.
Nodes are not introduced in the intersections of crossing lines.
The following elements are not included in the import:
Reading of any text
Intelligence on "through members"
Gridlines and construction lines
The 3D DXF Import can only be selected in a 3D view.
The Open dialog opens.
The DXF Import Wizard opens.