1. Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Project Lead The Way, Inc.
Copyright 2007

2. Oblique Pictorials Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Oblique Pictorials
Project Lead The Way, Inc.
Copyright 2007

3. Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Oblique Pictorials
An Oblique pictorial starts with a straight-on view of one of the object’s faces, which is often the front face.
Angled, parallel lines are drawn to one side to represent the object’s depth. The most common oblique angle is 45°. But 30°and 60° is used also.
45°
45°
45°
Project Lead The Way, Inc.
Copyright 2007

4. Three questions 1 2 What is a cube? Is object 1 or object 2 the cube?
If object 1 and object 2 have a height and width of 5 inches what would you estimate the depth to be? 1 2

5. Oblique Pictorials
Now lets check the length of each bracket

6. Oblique Pictorials
There are three types of oblique pictorials: The differences are the depth
Oblique Cavalier – full depth
Oblique Cabinet – half depth
General Oblique – depth doesn’t matter
Height and width of the front face matter the most.

7. Types of Oblique Drawings
Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Types of Oblique Drawings
Oblique Cavalier
Oblique Cabinet
Project Lead The Way, Inc.
Copyright 2007

8. Together: 5 unit cube with 45 degree depth lines
Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Together: 5 unit cube with 45 degree depth lines
A cube in oblique cavalier with a front, top and right view
2. A cube in oblique cabinet with a front, top and right view
3. A cube in oblique cabinet with a front, top and left view
4. A cube in general oblique with small depth lines and a front, top and right view
5. A cube in general oblique with large depth lines and a front, top and right view
Project Lead The Way, Inc.
Copyright 2007

9. Draw an oblique Cavalier and an oblique Cabinet
1. Draw a cube with length of 4 units, 30° depth lines, in cavalier (together)
2. Draw a cube with length of 6 units, 60° depth lines, in cabinet (together)
3. Draw a cube with length of 7 units, 30° depth lines, in cabinet (by yourself)

10. Oblique Pictorials
There are three types of oblique pictorials: The differences are the depth
Oblique Cavalier – full depth
Oblique Cabinet – half depth
3. General Oblique – depth doesn’t matter
Height and width matter on the front face

11. Pros of Cavalier and Cabinet
1. Cavalier has all dimensions correctly measured.
2. Cabinet looks more realistic.

12. Strategy for Advanced Oblique Sketches
Draw the front most face, then draw the depth for that face.
Draw the next front most face. Then draw the depth for that face.
Continue the process until the sketch is complete.

13. Depth of front Next Front Very front
Depth of very front
Very front

14. Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Convert Isometric to Oblique caviler with depth of 45 degrees, and each block has a length of 3 units (together)
BEST FRONT VIEW
Project Lead The Way, Inc.
Copyright 2007

15. Draw cabinet on your own
Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Draw cabinet on your own
Oblique Cavalier
Oblique Cabinet
Project Lead The Way, Inc.
Copyright 2007

16. Circles in oblique are circles
Oblique Pictorials
Introduction to Engineering DesignTM
Unit 1 – Lesson 1.2 – Intro to Technical Sketching
Circles in oblique are circles
Project Lead The Way, Inc.
Copyright 2007

17. Isometric and Oblique Pictorials
Introduction to Engineering Design
Unit 2 – Technical Sketching and Drawing
Oblique Pictorials
Examples
Interlocking pavement concept
Game system controller
Project Lead The Way, Inc.
Copyright 2012