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Dimensioning an Isometric Drawing | Up
Utilitiesman Volume 01 - Manual for electric, plumbing, water and other utilities | Next
Figure 1-14.—Three isometric views to be drawn orthographically. |
Figure 1-11.—Isometric 45-degree squares, chamfers, and
diagonals.
Figure 1-12.—Isometric drawing of a pipe hanger.
Figure 1-13.—Pipe layout.,
PLACING DIMENSIONS ON
AN ISOMETRIC DRAWING
The purpose of an isometric pipe layout is best
served by a simplified dimensioning system. Because
few dimensions are shown, draw accurately to scale, so
the layout can be measured.
Practice dimensioning by redrawing the pipe
diagram of figure 1-13 as an isometric pipe layout.
Ensure the lengths are to scale, and dimension the pipe
size accordingly. Also, make a list of fittings and pipe
required (MTO).
SKETCHING PRACTICE
So far, the principles of reading prints and drawing
sketches have been discussed. To practice these rules,
look at the three isometric drawings in figure 1-14 and
sketch three, 3-view drawings, properly dimensioned
1-10
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