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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 ...
Center Line 0.10 or 0.15 Green, Red, Blue ... ASME Y14.41-2012 is based upon ASME Y14.5-2009 symbols and definition ... AutoCAD Layer Names for Architecture ...
Block Elements is a Unicode block containing square block symbols of various fill and shading. Used along with block elements are box-drawing characters , shade characters, and terminal graphic characters.
Most engineering drawings are language-independent—words are confined to the title block; symbols are used in place of words elsewhere. [18] With the advent of computer generated drawings for manufacturing and machining, many symbols have fallen out of common use.
Screenshot from AutoCAD with various geometric dimensioning and tolerancing datum reference symbols (total indicator reading, perpendicularity, and parallelism. An engineering datum used in geometric dimensioning and tolerancing is a feature on an object used to create a reference system for measurement. [1]
Some recent embedded systems also use proprietary character sets, usually extensions to ISO 8859 character sets, which include box-drawing characters or other special symbols. Other types of box-drawing characters are block elements , shade characters, and terminal graphic characters; these can be used for filling regions of the screen 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.
Center line, a road surface marking; Center line, a taxiway marking; Center line, a runway marking; CenterLine (OCTA), failed light-rail project in Orange County, California, U.S. Centerline (nautical), the dividing line between port and starboard sides of a ship or boat; Centreline, a bus service in Manchester, England, later rebranded ...