About the Authors

James Dumont

Cumberland, RI


James has 34 years’ experience as a Design Engineer working with Automatic assembly machinery, Printing presses and government defense contractor. He has attended New England Institute of Technology, Community College of Rhode Island and University of Rhode Island. James also has more than 30 years’ experience with Autodesk products. In 2010, Autodesk named James as, “Top 10” Application Engineers in the reseller channel in North America.

James has been an Autodesk certified trainer for 28 years. In addition to being an Investor Certified Professional, James has developed custom Inventor curriculum for many manufacturing companies. He has been programming in LISP and VB for 30 years. James has been a guest speaker at Rhode Island's SME (Society of Manufacturing Engineers) chapter as well as several local engineering colleges and most recently, in 2013, has been a speaker at Autodesk University.

Currently, James works for an Autodesk Reseller, MicroCAD Training and Consulting as a Senior Technical Specialist, Trainer, Programmer and Product Implementation expert.

David Silverberg

Bronx, NY


An international consultant, innovator, design engineer and author, David Silverberg is an avid Inventor user. Prior to taking over ownership of Lektra Laboratories (a well-established designing and manufacturing company for high end darkroom equipment) as CEO and CTO, David Silverberg founded Photo Research and Products, Ltd. (PRP). PRP designed and manufactured precision line equipment for the production of printed circuits, including cameras and high precision silk screen printing presses. The company became a major supplier of precision line equipment to the electronics industry in both Israel (where it was founded), and Europe.

David Silverberg earned his degree in Mechanical Engineering from Stevens Institute of Technology and later served as a visiting lecturer on Machine Design and Project Management. He has supplied and consulted for major companies such as Motorola, Rollei, Elbit, Elscint, Weizman Institute, The Technion, Bizallel, Ort, Amal, Scitex, Kodak, Polaroid, Fugi and many other industry leaders worldwide. He also served in the Israel Defense Forces in an engineering capacity where his duties included the management of rescue operations in buildings damaged by hostile forces or natural disasters.


With the demise of the dark room due to the coming of the digital age, David has shifted his focus to Solar Hot Water heating and Water Filtration and Irrigation design and development. He currently resides in the Bronx, N.Y.

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