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Oblique Pictorial Drawings

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1. Types of oblique pictorial drawings

• Cavalier Oblique

x:y:z = 1:1:1

• Cabinet Oblique

x:y:z = 1:1:1/2

• General Oblique

x:y:z = 1:1:m, where ½ < m < 1

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2. Advantage of oblique Pictorials

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3. Sketching/drawing concept

i. Sketch/draw a true size and shape of a selected face

parallel to the frontal plane;

ii. Extrude that surface to a required depth along the

receding axis.

Note: For a complex shaped object, the above processes

must be repeated until all features are sketched/drawn.

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4. Guidelines

• The most descriptive surface should be parallel to the

frontal plane;

• The longest measurement should usually be placed along

the width direction;

• Circular features should be parallel to the frontal plane.

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5. Which one below is an appropriate oblique pictorial

drawing?

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6. Example 1: Sketch/draw an oblique pictorial

Step 1/2:

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Step 2/2:

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7. Example 2: Sketch/draw an oblique pictorial

Step 1/4:

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Step 2/4:

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Step 3/4:

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Step 4/4:

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Reference:

http://www.slideshare.net/mokhtarpadeli/engineering-

drawing-chapter-05-pictorial-sketching