CAD / Mechanical Design: Websites

There are lots of professional associations in engineering, materials, and manufacturing. If you don't find one of interest here, contact a librarian to help find one on a specific topic of interest to you.

Search library databases to find articles on particular topics.

You may also want to keep up to date using free online information from free online periodicals like these:

Standards & Data Sheets

• The NIST Reference on Constants, Units, and Uncertainty This National Institute of Standards and Technology has a searchable and browsable list of the important physical constants with bibliography, as well as a thorough description of the SI system of units and a description of methods of expressing degree of uncertainty in measurements. An excellent reference site.
   
•  MatWeb Materials properties searching

Products, Services, & Suppliers

• Thomas Register (ThomasNet.com) Comprehensive source for industrial information, product sources, company information, CAD drawings, and more.
   
• Engineering360 by IEEE GLOBALSPEC Search tool for engineering products, suppliers and services
   
• The Engineering Toolbox Tools and basic information for design, engineering and construction of technical applications

• Energy Efficiency & Renewable Energy  From the US Dept. of Energy EERE: Access free online publications, databases, program highlights, webcasts, workshop results, and energy analysis.

• United States Patent and Trademark Office Search for Patents and Trademarks, as well as for items protected under the "Patent Pending" status.

Other

• Engineering TV Online video center focused on engineering topics and issues. From Penton Media publishing, includes videos on: Electronic Design, Machine Design, Power Electronics Technology, Microwaves & RF, Mobile Dev & Design, Medical Design, Motion System Design, Source ESB and Electronic Design Europe.