Orthographic Projections, Continued
Third-angle
projections
Third-angle projection places the object with the front view projected onto
the vertical plane, the top view onto the horizontal plane, and the right-side
view onto the profile plane.
The arrangement of the three views on paper is
logically sequenced. Since the late 1800s, third-angle projection has been the
American standard in drafting practice.
Figure 6-25 shows third-angle projection.
Figure 6-25.—Principal views in third-angle projection.
Continued on next page
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