CAD model

Why It’s Still Necessary to Build Real Hardware

Why It’s Still Necessary to Build Real Hardware

By Sam Feller on March 18, 2012

CAD modeling, virtual prototyping, and 3-d printing all have their place; but at the end of the day, You Still Need to Build Real Hardware. In this post, I’ll share a few examples of my own hard won knowledge that no book or classroom lecture ever covered. The real lessons of the day came from some time in the shop with experienced and very talented machinists. I was doing work designing a socket drive to connect a steel shafted motor to an aluminum component. The socket and motor were both modeled in CAD, tolerance stackups were taken into account, and we had something like a .0025″ clearance between the walls of the socket and the drive shaft. The parts came from the machine shop, and like a little kid on Christmas, I tore open the packaging and started putting parts together. We put the mechanism (and associated motor) through it’s paces and […]

Posted in Manufacturing, Mechanical Engineering | Tagged aluminum, CAD model, machine shop, manufacturing, tolerances, tools | 1 Response

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