Take a closer look at the three types of scales: (See Figure 2.3)

• Full-size scale
  When a drawing has to be made equal to the actual size of the object, a full-size scale is used. This means that any dimension on the real object will equal the same dimension on the drawing. A full-size scale is indicated as follows:

• Reduction scale
  When a drawing has to be made smaller than the actual size of the object, a reduction scale is used. This means that any dimension on the drawing will be smaller than the same dimension on the real object. The reduction scale is indicated as follows:

• Enlarging scale
  When a drawing has to be made bigger than the actual size of the object, an enlarging scale is used. This means that any dimension on the drawing will be larger than the same dimension on the actual object. An enlarging scale is indicated as follows:

Figure 2.3

Engineering drawing scales

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