I've be trying convert a 3D solid model to DGN file and until now no success!
When I tried to export the model the error message of Figure 1 was returned. I'm using the settings of Figure 2. Is attached too, the DWG file for analysis.
Anyone has a suggestion for this question?
Perhaps you might consider exporting to ACIS format and letting your client import that. I believe MicroStation will read ACIS.