What’s in a name? Exact Engineering

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At Exact Engineering, we are firm believers in “exact constraint” design and so it was fitting to incorporate “Exact” into the name of the company. When properly applied, exact constraint design ensures precision products are engineered to be kinematically correct and simplest to manufacture. Machines, tooling and products designed with exact constraint methods are the highest performing and lowest cost. Exact Engineering is founded on the belief that this sort of simplicity and efficiency should be utilized no matter the complexity as it will yield the client the most accurate, elegant, robust and repeatable design that is the easiest to manufacture at the lowest cost.

Our Team

David Anderson

Founder and Principal Mechanical Engineer at Exact Engineering

David Anderson received an A.S. in Mechanical Drafting and Technology from Keene State College, and a B.S. in Mechanical Engineering from the University of Colorado. David has over 20 years of mechanical engineering experience.

From 1994 to 2000 David worked as a senior mechanical design engineer for Ball Aerospace and Technology Corporation, where his optomechanical work on the Hubble Space Telescope earned him multiple awards from NASA. David designed mechanisms and optomechanical systems for three of the Hubble Space Telescope instruments which are currently on board and operational. While at Ball, David also design optomechanical systems for inter-satellite linked laser communication satellites and vibration isolations systems. Additionally, David patented a high performance composite graphite thermal strap for use on space-borne satellite instruments.

From 2000 to 2003 David held the position of Senior Optomechanical Engineer for Network Photonics, specializing in optomechanical, electromechanical and MEMS design and analysis and testing of optical switching components for DWDM networks. David’s core responsibility was the design of an athermalized lens and optical metering structure. His work produced an ultra-stable, hi-bandwith all optical switch possessing arc-sec stability over both temperature and vibration . His work in MEMS yielded a tilting mirror array for switching up to 96 demultiplexed wavelengths of light and resulted in a company-wide adoption of David’s design and two MEMS patents. David also developed the mechanical prototype and testing labs and was instrumental in the deployment of a 50 million dollar manufacturing facility.

From 2002 to 2013 David became the first Master Instructor of Mechanical Design and Fabrication at the Franklin W. Olin College of Engineering, a new engineering college west of Boston. The college recruited David for the design and development of three state-of-the-art campus machine shop facilities in addition to his teaching duties. David selected, sourced and installed over $1 million of manufacturing equipment ranging from sheet metal fabrication to 4 axis CNC machining to laser cutting and abrasive waterjet cutting. Additionally, David developed taught courses on mechanical design and fabrication.

David began consulting in 2003 and in 2005 formed Exact Engineering,LLC with the goal of providing clients the engineering breadth-and-depth of a large-scale engineering company at the efficiency and with the personal service associated with a small engineering firm.

Michael Bornstein

Principal Mechanical Engineer

Michael holds a BS in Mathematics from Iowa State University and brings over 40 years of experience in aerospace engineering, optomechanics and automated assembly machine design. At Ball Aerospace, for over 15 yrs Michael engineered extreme precision pointing and tracking systems such as gimbaled cameras and fast steering mirrors. Prior employment Michael was a Senior Optomechanical Engineer at Network Photonics where he and David Anderson worked together developing fully athermalized, all-optical MEMS switching devices for DWDM. Before joining Network Photonics, Michael spent nearly 20 designing automated assembly machinery and is considered one of the leading experts in this field.

Brian Oconnor

Senior Design Engineer

Brian holds a BSME from Montana State University-Bozeman and is a registered PE as well. Brian came to Exact Engineering from Cybex International where he was employed for 9 years a mechanical engineer in the R&D and Reliability group. Prior he was employed at Raytheon for 9 years as mechanical Engineer developing electromechanical systems.

Donald Auclair


Don joined Exact Engineering in 2019 as a part time machinist and brings over 40 years of precision machining experience. Don has run nearly any machine tool made from manual lathes and knee mills to 5-axis CNC machining centers. We are lucky to have Don as a team member as his machining problem solving skills are unmatched.

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