GD&T ASME Y14.5: Detail Drawings DO NOT Apply at the Assembly Level, Fundamental Rule "P"

I discuss the following passage from ASME Y14.5-2018: Dimensions and tolerances apply only at the drawing level where they are specified. A dimension specified for a given feature on one level of drawing ( e.g., a detail drawing) is not mandatory for that feature at any other level (e.g., an assembly drawing). I give examples and explain what impact this rule has on engineering drawings. #ASME #Weldment #Drafting