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JSS3: BASIC TECHNOLOGY - 1ST TERM

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  1. Materials & Processing - Timber I | Week 1
    5Topics
    |
    1 Quiz
  2. Materials & Processing - Timber II | Week 2
    3Topics
    |
    1 Quiz
  3. Processing of Materials - Metals | Week 3
    5Topics
    |
    1 Quiz
  4. Processing of Clay, Ceramics and Glass | Week 4
    5Topics
    |
    1 Quiz
  5. Methods of Producing Plastics & Rubber | Week 5
    2Topics
    |
    1 Quiz
  6. Drawing Practice - Isometric Drawing | Week 6
    4Topics
    |
    1 Quiz
  7. Oblique Projection | Week 7
    2Topics
    |
    1 Quiz
  8. Orthographic Projection | Week 8
    4Topics
    |
    1 Quiz
  9. Perspective Drawing (One - Point Perspective Drawing) | Week 9
    4Topics
    |
    1 Quiz
Lesson 7, Topic 1
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Meaning of Oblique Projection

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Oblique drawing is also a pictorial method of drawing. In oblique projection, the object is drawn with one of its faces true to dimensions i.e. a face is parallel to the horizontal plane.

The receding lines (oblique lines) may be drawn at angles 30°, 45°, or 60°, but 45° angle is mostly used.

Axes of oblique projection
oblique projection
Axes of oblique projection.

One disadvantage of oblique drawing is that it distorts the drawing and can never look natural. Therefore, in order to prevent this distortion, the receding axes (widths) are usually drawn half-size.

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