2019-10-26T14:34:13+03:00[Europe/Moscow] en true Rule 1, Rule 2, Rule 3, Rule 4, Rule 5, Rule 6, Rule 7, Rule 8, Rule 9, Rule 10, Rule 11, Rule 12, Rule 13, Rule 14, Rule 15, Rule 16 flashcards
Linear dimensions rules

Linear dimensions rules

  • Rule 1
    Dimensions should reflect the actual size of an object, not the scaled size
  • Rule 2
    Include overall dimensions in the three principle directions; width, height, and depth
  • Rule 3
    Include all dimensions necessary to produce or inspect a part
  • Rule 4
    Do not include unnecessary dimensions
  • Rule 5
    Dimensions should be attached to the view that best shows the contour of the feature to be dimensioned
  • Rule 6
    A dimension should be attached to only one view, example; Extension lines should not connect two views
  • Rule 7
    Whenever possible, locate dimensions between adjacent views
  • Rule 8
    Avoid dimensioning hidden lines
  • Rule 9
    Do not place dimensions on the object unless it is absolutely necessary
  • Rule 10
    Do not cross dimension lines with other dimension lines or with extension lines
  • Rule 11
    Avoid crossing dimension or extension lines with leader lines
  • Rule 12
    Leader lines point towards the center of the feature and should not occur horizontally or vertically
  • Rule 13
    Dimension numbers should be centered between arrowheads, except when using stacked dimensions, then the numbers should be staggered
  • Rule 14
    In general, a circle is dimensioned by its diameter and an arc by its radius
  • Rule 15
    Holes should be located and sized in the view that shows the feature as a circle
  • Rule 16
    Holes are located by their center lines, which may be extended and used as extension lines