HEATKEYS

PTC develops cutting edge product lifecycle management (PLM) tools, 3D design software, and dynamic publishing solutions. Find out why the most innovative companies choose PTC.

CAD Blocks FREE! Download FREE CAD Blocks from a variety of categories and CAD disciplines. Browse before you download as all of our CAD Blocks have detailed thumnail views!

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

LISA is a free finite element analysis software package limited to 1300 nodes; the node limit can be removed for $80. Lisa can be used for static, thermal, vibration, dynamic response, fluid, buckling, dc current, electromagnetic and acoustic analysi...

element14.com is a design engineer community for sharing electronic engineering solutions. Find resources for technical components, specifications and expert advice.

Find and compare the best CAD software (computer-aided design) by cheapest price, top features, effects, operating system, file compatibility and description.

SourceForge.net. Fast, secure and free downloads from the largest Open Source applications and software directory

Freebyte, Your guide to the Web. Free software, clipart, images, music, games, jokes, anti-virus, dictionaries, pims, operating systems, programming tools, news, weather, screensavers, ebooks, etc.

MAKE brings the do-it-yourself mindset to all the technology in your life. MAKE is loaded with exciting projects that help you make the most of your technology at home and away from home. This is a magazine that celebrates your right to tweak, hack, ...