Figure 5-68.-Progress of a working sketch.dimensions. (Refer to the working sketch in7. Draw all necessary extension and dimen-fig. 5-68.) In sketching, progress as follows:sion lines.8. Letter in the dimensions. (See fig. 5-68,1. Draw the center lines, as shown in figureview C.)5-68, view A.2. Block in the views.You can see that a working sketch such as the3. Draw the outlines, aligning them as inone shown in figure 5-68 could easily be followedfigure 5-68, view B.in preparing a finished drawing of the object.4. Add the details on the surface of the views.The sketch provides you with all the necessary5. Darken the lines of the finished sketch.information needed on the finished drawing.6. Use an art gum or a kneaded eraser to erasethe construction lines, which are no longerPictorial Sketchesneeded. If necessary, touch up the lines you mayOften it will be more convenient,have inadvertently erased.necessary, to prepare isometric oror evenoblique5-34
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