CATIA V5 Tutorial: How to Export CATDrawing to DXF with Layers Intact
1.Go to Tools –> Options.
2. In the left pane, select ‘Compatibility’ and then click on ‘DXF’ tab. This tab gives you all the options for importing and exporting DXF.
3. In the Export section, change the Export mode to “Semantic”. Under ‘Semantic options‘ , select “Export layer name”.
5. Click OK.
You are done. Now CATIA will export all drawings to DXF with Layers.