Microsoft Word - lecnote_fm_engineering drawing

The method of constructing an isometric drawing of an object
composed partly of inclined surface (and oblique edges) is

shown in figure 5.20 .Notice that inclined surfaces are

located by offset measurements along isometric lines.

Figure 5.20 Isometric drawing of normal surfaces

For example, dimensions E and F are setoff to locate the
inclined surface M, and dimensions A and B are used to
locate surface N.