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Blueprint Compositions, Continued
Scale
The scale block shows the-size of the drawing compared to the actual size of
the part or assembly. Choose the scale to fit the object and the space
available on the sheet of drawing paper. Never measure from drawings;
always use stated dimensions.
Scale usually appears as part of the title
block. Indicate scale using the fractional method where the drawing unit is
the denominator and the object is the numerator, the equation method where
scale is indicated in feet (’) and inches (”), or the graphical method with a
primary scale to the right of the 0 and a subdivided scale to the left of the 0.
Graphical scales are reserved primarily for maps.
Figure 1-39 illustrates the three ways of indicating scale on drawings.
Figure 1-39.—Indicating scale.
Continued on next page
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