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College of EngineeringEngineering Education Innovation Center

Basic Isometric Sketching and Coded Plans

Chapter 2 of Text

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Objectives

• Understand the basics of the isometric sketching

• Create basic isometric sketches using snap cubes and coded plans

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Isometric Sketches

• Isometric sketches represent 3 dimensional objects in 2D space.

Isometric coordinate system

Isometric grid and dot paper

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Isometric Sketches• Isometric sketches are made as if you’re

looking down the diagonal of a cube. Diagonal of the cube

End view of the diagonal

• Note that when we look down on the cube like this, the right angles appear distorted.• The square sides of the cube now look

like parallelograms.

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Coded plans• Coded plans define simple objects which can be

made from blocks.• Each number represents how tall the stack of

blocks is at that location.

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Isometric Sketches from Coded Plans

• Lines are shown only where surfaces intersect.• Hidden edges are not shown.

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Isometric Sketches and Coded Plans

• Use this time and your snap cubes to practice building objects and sketching in isometric perspective using coded plans.

• In class assignment