Tolerance

Calculate bonus tolerance for MMC and LMC material condition modifiers. Shows virtual condition, resultant condition, and total tolerance across the size range.

Lame equations for cylindrical interference fits — contact pressure, hoop stress, safety factor, torque/force capacity, thermal assembly, ASME B4.1 fit classes.

1D linear tolerance stackup with worst-case, RSS, and modified RSS analysis. Sensitivity ranking shows where your tolerance budget is going. Reverse-solve mode proposes which tolerances to tighten when the stackup doesn't close.