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                                                 Figure 4.23 : Parallel dimensioning


                       4.7.3  Combined dimensioning

                       This arrangement is when both methods, chain dimensioning and parallel dimensioning

                       are used on the same drawing.














                                                Figure 4.24 : Combined dimensioning



               4.8     Dimension Guidelines


                       Wherever  two  guidelines  appear  to  conflict,  the  selected  method  should  clearly

                       communicates the size information and shall prevail :


                          ➢  Every dimension must have an associated tolerance and that tolerance must be

                              clearly shown on the drawing
                          ➢  Avoid  over-dimensioning  a  part.  Double  dimensioning  of  a  feature  is  not

                              permitted

                          ➢  Dimensions should be placed in the view which most clearly describes the feature

                              being dimensioned.
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