Interactive Tolerance Stack-Up Tutorial

Practice your tolerance stack-up analysis skills with real-world assembly scenarios. Each scenario presents a common dimensional analysis challenge and tests your understanding of signed dimensional chains, worst-case bounds, Root Sum of Squares (RSS) statistical bounds, Monte Carlo simulation, method selection, and result interpretation.

Scenario 1: Simple 2-Part Assembly

You are assembling a shaft into a housing bore. The housing bore has a nominal diameter of 25.00 mm and the shaft has a nominal diameter of 24.90 mm. The functional gap (clearance) is the difference between the bore and the shaft.

In a signed dimensional chain for this assembly, how do the bore and shaft dimensions contribute to the gap?