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Drawing (drafting standards)

MrCATIA

Super Moderator
generally (your company drafting standards may override these):

ASME (American Society of Manufacturing Engineers)
+ all dimension values are horizontal
+ dimension values placed in middle of broken dimension line
+ abbreviations used for dimension types (DIA, 3 PLACES, CHAMF)

ISO (International Standards Organization)
+ dimension values parallel to dimension line
+ dimension values placed above dimension line
+ symbols used for dimension types (Ø, 3X)
 

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