DWG TrueConvert 2009
TrueConvert is a freeware application with DWG TrueView D2DX, a.NET wrapper for D2DX and TrueView. It is a free AutoCAD plug-in, which provides the ability to load and manipulate.dwg files from various formats. It is a rapid 3D COM object-based application, and allows users to create 3D objects directly with a DWG source drawing. It can save the 3D models into DWG, DXF, DGN, JPG, BMP, WMF, EMF, TIFF, and more.
Inexpensive solutions are free and open source software products that can be used to open, edit, and manage 3D DWG, among other general GIS models, and convert them to other formats, such as OBJ, STL, JPG, GIF, WMF, EMF, PS, and more.
DWG TrueView is a freeware application, open source, with DWG TrueConvert software included, built on the same viewing engine as AutoCAD software. The freeware Autodesk Design Review software adds a possibility to open DWG files in Design Review to take advantage of measure and markup capabilities, sheet set organization, and status tracking.
It provides the ability to open DWG files from various formats and convert them to other formats, for example, to the following formats: DWG, DXF, DGN, JPG, BMP, WMF, EMF, TIFF, SVG, PDF, and more.