Charles A Gillis, P.E.

Design Engineering Senior Consultant

Charlie Gillis has over 25 years of machine design experience in industry. He previously worked as a mechanical design engineer for Gillette, the Blades & Razors Division of Procter & Gamble Company, where  he designed automated machinery for manufacturing Gillette’s blade & razor products. He has designed and put into service numerous pieces of manufacturing equipment consisting of complex mechanisms of precision assembled components. He has designed equipment to manufacture the Mach3, Venus, Sensor3, Fusion, and Venus Embrace product lines.

His consulting company helps clients with product design, design for assemblability and manufacturability, design documentation, tolerance stack-up analysis, and related capability-building.

For over 10 years, he has taught Geometric Dimensioning & Tolerancing through Worcester Polytechnic Institute’s Continuing and Professional Education Department.

He is the author Hammer’s Blueprint Reading Basics (Industrial Press 2017). He is also a contributing author to Machinery’s Handbook (Industrial Press 2020), Machine Designers Reference (Industrial Press 2011), and The Cam Design and Manufacturing Handbook (Industrial Press 2002).

Charlie earned his Bachelor of Science Degree in Mechanical Engineering from Worcester Polytechnic Institute, and his Master of Science Degree in Mechanical Engineering from Northeastern University. He is a licensed Professional Engineer in the Commonwealth of Massachusetts, and holder of a Geometric Dimensioning and Tolerancing Professional Certificate-Senior Level (GDTP-S) from the American Society of Mechanical Engineering (ASME).

Training Certificates:
GD&T Professional

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