Quote:
Originally Posted by Tristan Lall
Also, if it wasn't possible to measure the centre distance directly with the tools available, wouldn't it have been been more accurate to 3-D-print a pair of gauge pins to fit the mounting holes and measure between them (accounting for their diameters)? That way you'd be testing against a simple dimensional tolerance (which you presumably established during design), rather than a functional constraint (which is kind of tough to evaluate under the circumstances).
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This isn't how we will actually be validating our production part's dimensions & tolerances. Our students will be learning inspection methods and comparing the physical part to the CAD model and/or drawings.