6.2: Make isometric sketches of simple rectangular objects
- Page ID
- 3250
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Make isometric sketches of simple rectangular objects
Isometric sketches are useful because they are easy to draw and clearly represent an object or system. This clarity comes from using directional lines to represent the three dimensions of length, width, and height, much like a picture.
Construction methods
The following steps explain how to draw an isometric cube. The three dimensions of length, width, and height are drawn along the isometric axes shown in Figure 8. The lengths of objects running parallel to these axes can be drawn to scale. Lines at other angles will not be to scale.

- Isometric axes
- Step 1: Isometric guide for front-right view
- Step 2: Isometric view of top surface of a rectangular block
- Step 3: Lines parallel to L and D
- Step 4: Completed outline of rectangular block
- Completed isometric sketch
- Orthographic views
- Basic outline
- Location of marks on axes
- Location of main features
- Location of outer surfaces
- Internal features
- Completed sketch