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GrabCAD - a free CAD model library with 2D / 3D CAD files available for software like SolidWorks, AutoCAD, Autodesk Inventor, Solid Edge, SketchUp etc.

think3 Shape a new world

MoI is a new 3D Modeling/CAD application for designers and artists. Offering a blend of precision and freeform NURBS drawing tools, it sports a unique user interface that operates seamlessly with a pen tablet.

Okino Computer Graphics develops and markets the pioneering and industry leading 3D translation, conversion and visualization software packages: the PolyTrans CAD+DCC Pro Translation System and NuGraf for CAD/DCC/VisSim Translation, Rendering, Viewin...

Online PDF Converter - unlock PDF and remove protection, merge PDF - Online PDF Konverter - kostenlos, schnell und einfach: Egal ob Word, Excel, PowerPoint oder Bilder, mit unserem PDF Konverter wandeln Sie Ihre Dokumente und Bilder auf bequeme Weise...

The official Altair HyperWorks Support Forum/Community. Search our knowledgebase community or post your own topics/questions in the Altair HyperWorks Support Forum.

OpenGL Developer Web Site

Dassault Systèmes SolidWorks Corp. develops and markets 3D CAD design software, analysis software, and product data management software. SolidWorks is the leading supplier of 3D CAD product design engineering software.

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

An online center for Computational Fluid Dynamics. Services include a comprehensive link section, a jobs database, a CFD-Wiki, and a discussion forum. This is the largest CFD site on the net.