STL Toolkit 1.0 is a very useful application for anyone who has anything to do with Rapid Prototyping. With STL Toolkit 1.0 you can view and print Stereolithography (.STL) files. It uses OpenGL graphics to render a true-to-life image of a STL file. You can even convert files from other formats from and to the STL file format.
Create Excel table in AutoCAD 2008
Create and modify tables in AutoCAD with Excel, and perform block counting, area/length calculation...
TraceART
TraceART transform any raster images into a vector format.vectorizer, which can high-speed convert raster bitmap into vector image. it supports such all kinds of image format as BMP,JPG,TGA,TIF,PCX etc.
GStarICAD
GStarICAD is the geniune CAD drawing software based on IntelliCAD,and it is 99% idential to AutoCAD but with a competitive price.GStarICAD offers a 30days free tryout after free download this software
Internal CADviewer
INTERNAL CADVIEWER is DWG viewer for AutoCAD. With this AutoCAD add-on you can browse, view or open drawings stored on your computer or CD-ROM(e.g. DWG catalouges).
ISS Foresight
Experience 3D rapid prototyping as only ISS Foresight can deliver it. Effortlessly add 3D objects and elements, each of your changes and additions created in the 2D Designer are applied instantly in the 3D Navigator. Visit iss3d.com for Tutorials