2. Tuesday, October 20 Objective: Students will learn the fundamentals of oblique sketches. Bellringer: In the term 3-D, what are the three dimensions of an object?

3. 4 MINUTES REMAINING…

4. Tuesday, October 20 Objective: Students will learn the fundamentals of oblique sketches. Bellringer: In the term 3-D, what are the three dimensions of an object?

5. 3 MINUTES REMAINING…

6. Tuesday, October 20 Objective: Students will learn the fundamentals of oblique sketches. Bellringer: In the term 3-D, what are the three dimensions of an object?

7. 2 MINUTES REMAINING…

8. Tuesday, October 20 1 minute left…. Objective: Students will learn the fundamentals of oblique sketches. Bellringer: In the term 3-D, what are the three dimensions of an object?

9. 30 Seconds Remaining…

10. 10 Seconds Remaining…

11. October 20, 2009 AGENDA: 1 – Bellringer 2 – Collect Isometric Sketches # 1 – 11 (last chance for completion is 4pm today) 3 – Introduction to Oblique Sketching HOMEWORK 1.Study flashcards 2.Oblique Sketching Worksheet (3 practice and 3 questions)

12. 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. Common oblique angles include 30°, 45°, and 60°. Oblique Pictorials 45°

13. There are two types of oblique pictorials: cavalier and cabinet. The difference between the two is based on how the depth of the object is represented. Types of Oblique Drawings Oblique Cavalier Oblique Cabinet

14. Types of Oblique Drawings Oblique Cavalier Oblique Cabinet

15. A general oblique is a type of oblique pictorial that represents an object’s width and height, but the depth can be any size and drawn at any angle. The idea is to worry about getting the thought down as a sketch not worrying about the depth or angle. General Oblique

16. Oblique Sketches Step #1:Create construction box. Step #2:Use points and construction lines to identify edges that occur on the surface of the box. Step #3:Trace out the visible edges of the part with thick, dark object lines. Step #4:Use points and construction lines to identify edges that occur on the surface of the box. Step #5:Trace out the visible edges of the part with thick, dark object lines.

17. Tonal Shading Add tonal shading to two of the three views by drawing parallel lines spaced closely together. Increase the contrast by cross-hatching the lines on the darkest face.

18. Vocabulary Construction Line Depth Edge Grid Line Weight Point Plane Shading Shape Proportion Width Height Tone Scale

19. Remember, you can view the Pltw.PPT presentation again inside the Introduction to engineering design First class workspace

20. October 20, 2009 AGENDA: 1 – Bellringer 2 – Collect Isometric Sketches # 1 – 11 (last chance for completion is 4pm today) 3 – Introduction to Oblique Sketching HOMEWORK 1.Study flashcards 2.Oblique Sketching Worksheet (3 practice and 3 questions)