dimensioning includes measurement, notes, and symbols

placement of dimensions

dimensioning diameters

dimensioning radii which do not need their centers located

dimensioning radii when locating the radius center

each dimension should not be duplicated or given on a drawing in two different ways

dimensions should be placed in the view where the best shape and true form are shown

do not assume that a part is symmetrical.

line up dimensions horizontally and vertically where possible

avoidcrossing dimension lines