Abstract： ASME Y14.31:2008 pdf download.Undimensioned Drawings. 6.1 Split Views on Same Sheet When views of the item are split on the same sheet, thereshailbea minimum imageoverlapof3in. (76mm) from the designated common reference (see Fig. 18). 6.2...

ASME Y14.31:2008 pdf download.Undimensioned Drawings.

6.1 Split Views on Same Sheet

When views of the item are split on the same sheet, thereshailbea minimum imageoverlapof3in. (76mm) from the designated common

reference (see Fig. 18).

6.2 SplIt Views on Multiple Sheets

When views of the item are split over multiple sheets, the views shall have a minimum image overlap of 3 in. (76 mm) from the

designated common reference. Sheets may be positioned one above the other or side-by-side when designated common references are

used. When two or more sheets are joined in this manner, a sheet arrangement diagram shall be provided on the first sheet to

indicate the relative positions of the sheets and as an aid in selecting the sheet on which desired information is located (see

Fig. 19).

7 TOLERANCES

7.1 Graphical Tolerances

All features of the item shown in the graphical representation shall be drawn to a tolerance of ±0.010 in. (0.25 mm) of the actual size and location.

7.2 Item Tolerances

7.2.1 For contour definition drawings, templates, and comparator drawings, the lines defining an undimensioned item shall be

considered as being the true profile. Tolerances shall be applied to measurements taken from the center of each line.

7.2.2 For wire harness drawings, the lines defining the center line of the wire harness shall be considered the true location and

length. Plus or minus tolerances shall be specified on the drawing indicating the tolerance for the length of the wire harness.

7.2.3 For printed circuit boards, the lines defining the conductors shall be considered the true location. Tolerances are based on the components grid pattern per IPC-2221.

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