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Technology: Engineering Our World
To draw an orthographic projection of the house in Figure 3-25, complete
the steps described in Figure 3-26. It is easiest to learn to make orthographic
projection drawings by working freehand on square grid paper.
gure 3-25. The house shown in this
isometric view is shown in orthographic
views in Figure 3-27.
gure 3-26. To develop an orthographic sketch, follow these steps. A—Draw the front view. B—Project the
vertical lines of the front view above the drawing and draw the top view. C—Draw projection lines as shown to
complete the right-side view. D—Darken object lines and erase projection lines.
A A A A A
C C C
B B
D