autocad drawing viewer

To export AutoCAD drawing entities to STL file.

A Steel Design, Estimating, and AutoCAD Drawing Tool for Steel Professionals.

Extract/update AutoCAD drawing file data

Viewer for AutoCAD, 2D and 3D CAD, PDF, MS Office and 250 other formats.

It's an AutoCAD application to import OBJ files (Wavefront) into CAD drawing.