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  2. Engineering drawing abbreviations and symbols - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing...

    The [main] field of the drawing, as opposed to other areas of it, such as the parts list , general notes (G/N), flagnotes , title block , rev block , bill of materials (B/M or BoM or BOM), or list of materials . Rationales for drawing changes that are noted in the rev block often use these abbreviations for brevity (e.g., "DIM 14.00 was 12.50 ...

  3. Engineering drawing - Wikipedia

    en.wikipedia.org/wiki/Engineering_drawing

    Every engineering drawing must have a title block. [13] [14] [15] The title block (T/B, TB) is an area of the drawing that conveys header-type information about the drawing, such as: Drawing title (hence the name "title block") Drawing number; Part number(s) Name of the design activity (corporation, government agency, etc.)

  4. Technical drawing - Wikipedia

    en.wikipedia.org/wiki/Technical_drawing

    A cutaway drawing is a technical illustration, in which part of the surface of a three-dimensional model is removed in order to show some of the model's interior in relation to its exterior. The purpose of a cutaway drawing is to "allow the viewer to have a look into an otherwise solid opaque object.

  5. CAD standards - Wikipedia

    en.wikipedia.org/wiki/CAD_standards

    ISO Standards Handbook – Technical drawings, a broad collection of all basic ISO drawing standards Vol.1 Technical drawings in general, ISBN 92-67-10370-9; Vol.2 Mechanical engineering drawings, construction drawings, drawing equipment, ISBN 92-67-10371-7; ISO 128 Technical drawings—General principles of presentation

  6. Geometric dimensioning and tolerancing - Wikipedia

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

    Example of true position geometric control defined by basic dimensions and datum features. 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.

  7. ISO 128 - Wikipedia

    en.wikipedia.org/wiki/ISO_128

    ISO 3098-1:1974 Technical Drawing — Lettering — Part I: Currently Used Characters; ISO 4172:1991 Technical drawings — Construction drawings — Drawings for the assembly of prefabricated structures; ISO 5261:1995 Technical drawings — Simplified representation of bars and profile sections; ISO 5455:1979 Technical drawings — Scales

  8. 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 ...

  9. ISO 13567 - Wikipedia

    en.wikipedia.org/wiki/ISO_13567

    agent Architect, element Roof Window in SfB, presentation Text#2, New part, floor 01, block B1, *phase 1, projection 3D, scale 1:5(B), work package 23 and user definition "pro" A-G25---D-R agent Architect, element wall in Uniclass, presentation dimensions, status Existing to be removed

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