(4) Drawing Zones. Large drawings are divided into zones similar to those used on a map. Letters are used to define the horizontal zones and numbers are used to define the vertical zones. Figure 93 (on the previous page) illustrates a zoned drawing. Zone numbers are usually written in boxes with the letter over the number.

(5) Drawing Notes. Drawing notes are written instructions that are included as part of a drawing. They are written because they cannot be drawn (for example, heat treating or finishing instructions). Figure 88 (on page 101) includes a note that defines the torquing requirements of the assembly.

d. A Drawing Detail. A drawing detail is a special kind of partial drawing. It is used to enlarge a specific part of a drawing that is too small or too complicated to be completely understood if only shown in its actual size. Figure 94 is an example of a drawing that includes a drawing detail.

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Freehand Sketching An Introduction

Freehand Sketching An Introduction

Learn to sketch by working through these quick, simple lessons. This Learn to Sketch course will help you learn to draw what you see and develop your skills.

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