Shop sketching, a course of problems for mechanical drawing students (1919)
Windoes, Ralph Flagg, 1890- · Milwaukee, Wis., The Bruce publishing company · leaf 11
not be seen. Hence each view inthe orthographic shows but two dimensions, while theperspective and photograph show three. This willmake it apparent that at least two views are neces-sary in orthographic projection to properly show allthree dimensions of length, breadth, and thickness.To the student… … Figure 2DRAViriNG MATERIALS REQUIRED. A 2 H pencil, a 4 H pencil, a pencil eraser, paper, drawing board,and thumb tacks are all the materials needed for thedrawing work. The paper should have a rather hardsurface as the rough surface of the ordinary drawingpaper soils too rapidly. The plates are to…
Mechanical drawing
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