Roopinder Tara is director of content for engineering.com. He has been into CAD, CAM, and CAE for his entire professional life, as an engineer, CAD manager, professor, and publisher. He has written numerous publications on CAD, design, and engineering. He has a bachelor’s degree in mechanical engineering (Drexel University), a master’s in engineering science (Penn State), and has been a certified professional engineer. He can be reached via email at rtara@engineering.com.