autocad 2009

Import OBJ files (Wavefront) into AutoCAD drawing.

Draw points in AutoCAD and generate 3D models using data in Excel.

Civil Simulate is able to transform any AutoCAD Civil 3D or CivilCAD project

Finds differences between versions of AutoCAD drawings

Architectural DWG Design for progeCAD AutoCAD DWG Clone, 1/10th the cost

Cross-platform Java library for exporting CAD entities and data to AutoCAD DXF

To export AutoCAD drawing entities to STL file.

DXF 3D .NET library for import, export and viewing of AutoCAD DXF files.

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

SolidStructural - 3D Steel AuDetailing System running inside AutoCAD