HEATKEYS

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

archinoah.com is a architecture network for architects, interior architects, urban planners, engineers and students of these branches.

3D models for CAD/CAM/CAE designers. Cars, cities, airplanes and other polygonal and NURBS/SOLID models.

Find free downloads for supplier parts models, component models, 3D parametric models and supplier component downloads, including free CAD drawings, assembly models and full 3D CAD models. Use these free part models by dropping them directly into yo...

Empowering anyone to create and publish 3D online through our 3D platform of community, 3D content, and free 3D software.

Diversified power management company and global technology leader in electrical systems for power quality, distribution and control; hydraulics components, systems and services for industrial and mobile equipment; aerospace fuel, hydraulics and pneum...

Craftsmanspace contains free woodworking and metalworking DIY (do it yourself) project plans and patterns with detailed manufacture and assemblage descrfiption.

RC Universe is the largest radio control website to buy, sell, trade and discuss rc cars, rc planes, rc helis, rc electric airplanes or helis, boats, radios and engines plus read our free online radio control magazine.

RC Groups - the most active Radio Control model community: electric and fuel rc airplanes,rc helis,rc boats and rc cars. Features discussion forums, blogs, videos and classifieds.

homebuiltairplanes.com is a dicussion forum centered on homebuilt aircraft.

CubeSat Kit - www.cubesatkit.com : Image Files, Data Files, Drivers, Manuals, Download, Webmaster

The largest amateur Unmanned Aerial Vehicle (UAV) community on the web.