website introduction：A 3D sketching software for the conceptual phases of design.
website introduction：Shapeways, the world's first 3D co-creation community, brings design to life with cost effective, high quality 3D printing. Shapeways is redefining Do-It-Yourself by connecting consumers to the latest in micro production with easy to use click-and-drag product customization and advanced upload-to-print tools for seasoned 3D designers. Shapeways encompasses a diverse community of artists and enthusiasts engaging in everything from collaborative creation to selling their 3D designs as products through the unique Shapeways Shops, an international marketplace for consumer created 3D printed products.
website introduction：Developers and distributors of numerical control programming products.
website introduction：A solid modeling program for mechanical engineers and designers, as well as add-on applications..
website introduction：Develops and sells software products for computer aided design, computer aided manufacturing, computer aided engineering and product data management.
website introduction：PTC develops and sells Pro/ENGINEER, Pro/Mechanica, Pro/Concept and related products.
website introduction：Synopsys is a world leader in electronic design automation (EDA), supplying the global electronics market with the software, IP and services used in semiconductor design and manufacturing. Synopsys' comprehensive, integrated portfolio of implementation, verification, IP, manufacturing and FPGA solutions helps address the key challenges designers and manufacturers face today, such as power and yield management, system-to-silicon verification and time-to-results. These technology-leading solutions help give Synopsys customers a competitive edge in bringing the best products to market quickly while reducing costs and schedule risk. Synopsys is headquartered in Mountain View, California, and has more than 60 offices located throughout North America, Europe, Japan, Asia and India.
website introduction：Provides front-to-back design tools and services for all aspects of semiconductor design.
website introduction：Over 2.700 free tips and tricks for AutoCAD, AutoCAD LT, 3ds Max, Inventor, Revit, Civil 3D, Simulation, Fusion 360 and other products by Autodesk and HP. CAD/BIM blocks library, downloads, videos, converters, blogs.
website introduction：Download families, share knowledge, learn more and ask questions about Revit.
website introduction：The creators of AutoCAD, Maya, and other 3D design and engineering software. Includes online store, product information, trial downloads and discussion forums.
website introduction：Provides software tools and consulting services for electronic design.
website introduction：Provider of solutions to government organizations around the world with a focus on providing a platform for planning, designing and engineering, operating and maintaining spatial assets.
website introduction：CADTutor provides free tutorials, articles, answers to FAQs and a busy community forum for users of AutoCAD and associated software.
website introduction：Supplier of EDA and embedded software design tools for the Microsoft Windows environment. Formerly Protel International.
website introduction：Professional 3D architectural home design software. Automated building tools make home design, remodeling, interior design, and kitchen & bath design easy. Discover why Chief Architect is the home design software product of choice for 2D and 3D design.
website introduction：The user organization officially sanctioned by Autodesk for its products. Further information requires registration.
website introduction：The developers of ArchiCAD, a 3D architectural design software with 2D drawing and layout functions for architects, interior designers and structural engineers.
website introduction：A parts library integrated with many CAD systems for direct invocation, as well as with standard data formats
website introduction：AutoCAD tips and tutorials, the features of the latest AutoCAD release, a free monthly AutoCAD Tips Newsletter, and the AutoCAD Tips Blog.
website introduction：The developers of TurboCAD, with online store, trial downloads, documentation, and user gallery..
website introduction：Various geometric online-calculation tools for concrete blocks, stairs, and other construction design tasks.
website introduction：The complete technical, product and business information offering print, online and email newsletter resources for CAD managers and end-users across all three major markets of AEC, MCAD and GIS/mapping.
website introduction：Library of parametric components for 2D/3D CAD assemblies, which can be used with several CAD packages.