Grasshopper™ is a graphical algorithm editor tightly integrated with Rhino’s 3-D modeling tools.

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

Facebook is a social utility that connects people with friends and others who work, study and live around them. People use Facebook to keep up with fr...

Twitter is without a doubt the best way to share and discover what is happening right now.

3D Models save you time and money. Find the 3D Model for your project in our vast library of cars, people, architectural models and more.

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

SPIE is an international society advancing an interdisciplinary approach to the science and application of light.

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Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights a...