oblique pictorial drawings
TRANSCRIPT
1
Oblique Pictorial Drawings
2
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
3
2. Advantage of oblique Pictorials
4
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.
5
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.
6
5. Which one below is an appropriate oblique pictorial
drawing?
7
6. Example 1: Sketch/draw an oblique pictorial
Step 1/2:
8
Step 2/2:
9
7. Example 2: Sketch/draw an oblique pictorial
Step 1/4:
10
Step 2/4:
11
Step 3/4:
12
Step 4/4:
13
Reference:
http://www.slideshare.net/mokhtarpadeli/engineering-
drawing-chapter-05-pictorial-sketching