export as a 3D dwg for draftsight

Hi,

I've notice that I can open some dwg as 3D model with draftsight. These dwg

files, visibile as 3D model in draftsight ,come from one of our supplier which use Autocad3D.

Is there a way I could create the same dwg of a 3D model and open

them as 3D model in draftsight?

Thanks

SolidworksImport export