Convert EASM to DWG

Converting eDrawings Assembly Files directly to AutoCAD Drawings (.easm to .dwg conversion) is, most likely, not possible, simply because .easm files are locked, and only used as previews or for printing purposes. Exceptionally, .easm files exported with the 'allow save' option can be exported to some other formats, such as for instance .stl (Stereolithography Files). 

Your chances for a direct .easm to .dwg conversion are however extremely slim.