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Holes dimensioned equally spaced on a pitch circle diameter (P.C.D.) are represented by using a pattern of circular features. The diameter of each hole is specified, along with the number of holes and the P.C.D. dimension. The P.C.D. is the distance between the center of one hole to the center of thRead more
Holes dimensioned equally spaced on a pitch circle diameter (P.C.D.) are represented by using a pattern of circular features. The diameter of each hole is specified, along with the number of holes and the P.C.D. dimension. The P.C.D. is the distance between the center of one hole to the center of the next hole in the pattern. This representation ensures precise positioning of holes in applications such as bolt circles or gear teeth.
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