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Mastering Sketching: Basics, Techniques & Principles

Learn basic sketching skills & techniques, sketching concepts, and principles of isometric, oblique, and multiview sketching. Practice drawing quick design sketches, freehand technical sketches, and technical illustrations. Explore types of sketches like single-view, multi-view, and pictorials. Engage in sketching assignments to enhance your skills. Improve your proportions, clarity, and use of sketching aids. Experiment with different angles, circles, arcs, and perspectives in your sketches. Develop a deeper understanding of sketching through hands-on assignments and practical demonstrations.

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Mastering Sketching: Basics, Techniques & Principles

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  1. Sketching 2.00 Explain and demonstrate basic sketching skills and techniques.

  2. Sketching Concepts 2.01 Explain the concepts related to sketching.

  3. Purpose of a Sketch • Quickly & easily get an idea on paper • Design sketches • Freehand technical sketches • Technical illustrations

  4. Freehand Technical Sketch

  5. Design Sketch

  6. Technical Illustration

  7. Paper Pencil Soft lead Optional Eraser Grid Paper Sketching Materials

  8. Sketching Technique • Proportion • Clarity • Sketching Aids

  9. Sketching Lines • Vertical lines • Top to bottom • Long straight lines • Series of short straight lines

  10. Sketching Circles & Arcs • Begin by lightly constructing a square

  11. Sketching Angles • Begin with 90°angle 45° 60° 30° Subdivide once Subdivide twice

  12. Sketching Assignment

  13. Sketching 2.02 Explain the concepts and principles underlying isometric, oblique and multiview sketching.

  14. Sketching • Types of Sketches • Single-view • Multi-view • Pictorials

  15. Single-view Sketching • Technical purposes • Front view • Most descriptive features

  16. Object Steps for Single-view Sketching Step 2 Step 1 Step 3 Step 4

  17. Multi-view Sketching • Technical sketch • Front view • Top view • Side view

  18. TOP VIEW FRONT VIEW R. SIDE VIEW Multi-view Sketch

  19. Single-view/Multiview Sketch Assignment

  20. Pictorial Sketches • Quickly communicate an idea • Three dimensions in one view • Width • Height • Depth

  21. Pictorial Sketches • Three (3) types • Isometric 120 between xyz • Oblique 90 between xy • Perspective vanishing points

  22. Isometric Sketch HEIGHT WIDTH DEPTH

  23. Isometric Sketching • Three equally spaced axes of 120°

  24. Isometric Sketching • Receding lines • Typically 30° off horizontal

  25. Isometric Sketching • Circular shapes appear as ellipses

  26. Isometric Ellipses • Correct ellipse orientation

  27. Isometric Sketching • Non-Isometric lines • Locate endpoints and connect

  28. Isometric Sketching Assignment

  29. Oblique Sketch HEIGHT DEPTH WIDTH

  30. Oblique Sketching • Front view is drawn true shape and size

  31. Oblique Sketching • Receding edges are usually drawn at an angle of 30°, 45°, or 60°

  32. Oblique Sketching • Circles and curves drawn on frontal plane will appear true shape and size

  33. Oblique Sketching Assignment

  34. Perspective Sketches 1-Point Perspective 2-Point Perspective

  35. Perspective Sketches • Objects appear as the eye would see them • Most realistic type of pictorial sketch • Most difficult pictorial sketch to draw

  36. Perspective Sketching Assignment

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