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  2. Run-out - Wikipedia

    en.wikipedia.org/wiki/Run-out

    Run-out or runout is an inaccuracy of rotating mechanical systems, specifically that the tool or shaft does not rotate exactly in line with the main axis. For example; when drilling , run-out will result in a larger hole than the drill's nominal diameter due to the drill being rotated eccentrically (off axis instead of in line).

  3. Total indicator reading - Wikipedia

    en.wikipedia.org/wiki/Total_indicator_reading

    In metrology and the fields that it serves (such as manufacturing, machining, and engineering), total indicator reading (TIR), also known by the newer name full indicator movement (FIM), is the difference between the maximum and minimum measurements (the range), that is, readings of an indicator, on the planar, cylindrical, or contoured surface ...

  4. Geometric dimensioning and tolerancing - Wikipedia

    en.wikipedia.org/wiki/Geometric_dimensioning_and...

    Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof. GD&T is used to define the nominal (theoretically perfect ...

  5. ASME Y14.5 - Wikipedia

    en.wikipedia.org/wiki/ASME_Y14.5

    ASME Y14.5 is a complete definition of geometric dimensioning and tolerancing. It contains 15 sections which cover symbols and datums as well as tolerances of form, orientation, position, profile and runout. [3] It is complemented by ASME Y14.5.1 - Mathematical Definition of Dimensioning and Tolerancing Principles.

  6. Runout - Wikipedia

    en.wikipedia.org/wiki/Runout

    A runout may include any of the following: Runout (climbing), a section of a rock climbing route with a long gap between points of protection; Run-out, an inaccuracy of rotating mechanical systems, specifically when a tool or shaft does not rotate exactly in line with the main axis. Run out, a method of dismissal in the sport of cricket.

  7. Tolerance analysis - Wikipedia

    en.wikipedia.org/wiki/Tolerance_analysis

    Tolerance analysis is the general term for activities related to the study of accumulated variation in mechanical parts and assemblies. Its methods may be used on other types of systems subject to accumulated variation, such as mechanical and electrical systems.

  8. Talk:Geometric dimensioning and tolerancing - Wikipedia

    en.wikipedia.org/wiki/Talk:Geometric...

    The ISO standard may have slightly less symbols than what ASME Y14.5 has, but ISO has the same basic content from what I understand. There seems to be several ISO documents for GD&T. It appears ISO split it up into several different sections from datums to runout. Purchasing them all may cost over $1000.

  9. Datum reference - Wikipedia

    en.wikipedia.org/wiki/Datum_reference

    Technical drawing with references and geometric specifications. A datum reference or just datum (plural: datums [Note 1]) is some geometrically important part of an object—such as a point, line, plane, hole, set of holes, or pair of surfaces—that serves as a reference in defining the geometry of the object and (often) in measuring aspects of the actual geometry to assess how closely they ...