HEATKEYS

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

Engineers Edge - Total Design, Engineering & Manufacturing Resouces

GlobalSpec is a search engine and information resource for the engineering, industrial and technical communities. We help you quickly find industrial parts, specifications and services.

Thingiverse is a universe of things. Download our files and build them with your lasercutter, 3D printer, or CNC.

Learn how to do just about everything at eHow. Expert Village is now a part of eHow, adding expert How To videos to eHow, the world

Nobody makes gears faster - prototypes, production runs, variety of materials

A WPI education has never been more relevant than it is today, because the demand for innovative thinkers who can solve problems on a global scale has never been greater.

We are the leading supplier of metric Spur Gears, Helical Gears, Spiral & Striaght Bevel Gears, Miter Gars, Ring Gears, Screw Gears, Gear Racks, Worms & Worm Wheels, Ratchets & Pawls, Involute Splines, and related gearing items.

Arrow Gear is a precision gear manufacturer, specializing in custom gearing and producing a wide variety of spiral bevel, straight bevel gears, stock gears, spur and helical gears as well as complete gearboxes.