oblique pictorial drawings
TRANSCRIPT
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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