Course description

Designers use dimensional tolerances to limit spatial variations in mechanical parts and assemblies; the goals are interchangeability in assembly, performance, and cost. This course covers traditional limit tolerances briefly, but focuses mainly on modern geometric tolerances and their role in assembly control. Students learn how to represent assemblies in terms of mating and relational constraints, and how to design tolerances for relatively simple parts and assemblies.

Outcome 1: The student will be able to identify limitations of traditional limit tolerancing.

Outcome 2: The student will be able to read and interpret the symbols, dimensions, and tolerances on mechanical drawings.

Outcome 3: The student will be able to understand design intent based on mechanical design.

Outcome 4: The student will be able to understand the basics of tolerance stack-up analyses.


MAE 2250 or equivalent CAD-based design course, plus 2.5 years of engineering mathematics through probability and statistics. Permission of instructor or department required.

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