DRAFTING AND COMPUTERAIDED DESIGN 10

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INTRODUCTION TO ISOMETRIC DRAWINGS
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ISOMETRIC DRAWINGS

• An isometric drawing is a three-dimensional
  representation of an object drawn on an angle

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ISOMETRIC DRAWINGS

• Isometric drawings are drawn using three axes.

The three axes are 120 degrees apart.
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ISOMETRIC DRAWINGS

• The height axis is vertical.

The two remaining axes, depth and width, are each
30 degrees from the horizontal.
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ISOMETRIC DRAWINGS

• Any line drawn parallel to an axis is called an
  isometric line.

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ISOMETRIC DRAWINGS

• Note that each corner of an isometric box is
  created by the intersection of three lines, each
  parallel to an axis.

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ISOMETRIC DRAWINGS

• Isometric boxes can be drawn in different shapes.

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ISOMETRIC DRAWINGS

• To review An isometric drawing

• is three-dimensional

• is drawn on an angle

• uses 3 axes, each 120 degrees apart

• contains width and depth axes that are each 30
  degrees from the horizontal

• has corners created by the intersection of three
  isometric lines