What is GD&T, anyway? The Greatest Design Tool ever, or a whole bunch of Gol-Derned Trouble? Actually, geometric dimensioning and tolerancing is both, and worth every penny.

Only with the help of GD&T can we test and guarantee the functionality of parts and assemblies on the design floor instead of on the assembly floor, which is an all too common and awfully expensive alternative. But grasping GD&T and making it actually work is truly a lot of trouble. So, are we going to leave it lie, or make it work?

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