Tolerance Stack-Up Analysis

Apply tolerance stack-up analysis techniques to a variety of assemblies. Explore loop analysis, number charting, virtual condition, resultant condition, inner and outer boundaries, minimum airspace, maximum wall thickness, maximum interference, minimum and maximum overall thickness, and fixed and floating fastener assembly conditions.

This course can be applied to the Dimensioning and Tolerancing Certificate.

Benefits and Learning Outcomes

  • Calculate minimum and maximum wall thicknesses, airspaces and interferences for assemblies
  • Examine gaps for assemblies that use a variety of datum structures
  • Learn a system of logic and mathematics to analyze tolerances

Course Outline/Topics

1. The basics
2. Stack-up analysis of an 11-part assembly using plus and minus tolerancing
3. Vertical vs horizontal loop analyses for features of size
4. Assemblies with plus and minus tolerances
5. Floating fastener five-part assembly analysis
6. Fixed-fastener assemblies
7. A rail assembly
8. Single-part analysis
9. Five-part rotating assembly analysis
10. Trigonometry and proportions in tolerance stack-up analysis
11. The theory of statistical probability


This program has a special two-and-a-half-day format, with adjournment on Day three at noon.

Dates and locations to be announced.


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