Posts by Aaron Philippsen

Aaron Philippsen

Three Physical Connection Methods in Medical Device Test Fixtures

Physical testing is an essential tool for product development, particularly when developing a novel medical device. When well designed, a physical test can accurately represent phenomena that are difficult to model, and physical tests can often be constructed quickly with a minimum of custom components. Here are three connection methods that I have found useful […]

Aaron Philippsen

How to construct a custom differential screw

Understanding a differential screw and how to construct one I recently had to construct a custom differential screw when designing a precision test fixture for one of our medical device projects.  We used it to locate a test piece within +/-0.03mm. This motion required minimal force, and each part required a set of specific locating […]

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