HEATKEYS

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

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

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

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

YouTube is a place to discover, watch, upload and share videos.

The largest resource for MCAD (Mechanical Computer-Aided Design) professionals, including files, forums, jobs, articles, calendar, and more.

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...

Docstoc is a community for people to find and share professional documents. Find free legal documents and free business documents.

Emacs forum. Emacs is a text editor and more. At its core is an interpreter for Emacs Lisp (

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

The busiest antique tractor site on the internet with thousands of pages of antique tractor information and discussion topics. Photos, specs, monthly articles, hundreds of classified ads, 20 forums, quality parts suppliers and much more. Serving the...