Level 2 · Precision

Precision Engineering, Tolerancing & GD&T

Dimensional architecture, tolerance allocation, geometric controls, datum strategy, fits, stack-ups and precision assembly.

Phase 2 · Level 2 established · Level 3 deferred

Controlled Scope

Level 2 Coverage

This page defines the parent scope for this discipline inside Mechanical Engineering Systems. Detailed Level 3 specialty pages will be added only after the Level 1 and Level 2 architecture is reviewed and approved.

Datum reference frameworks

GD&T application

Tolerance stack analysis

Fits, clearances and interference

Precision alignment features

Metrology-driven tolerance closure