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Dimensions and Tolerance - Coggle Diagram

- - - - To give exact size and position. To ensure everyone builds or measures the part the same way. Used in 2D drawings, CAD models, and manufacturing blueprints
    - - With dimension lines, arrowheads, and numerical values. Sometimes includes notes (e.g., “Drill Ø10 mm hole”). Shown in millimeters (mm) or inches, depending on country or industry
- - - - No machine is perfect – It’s impossible to make every part exactly the same
      - Keeps costs low – Extremely tight tolerances are expensive to achieve
      - Ensures functionality – Too much variation could cause parts not to fit or fail
      - Allows parts to fit together properly – Especially important in moving assemblies like engines