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3. Lines of varying style and thickness are used in specific ways to develop and communicate graphic messages about an object’s geometry. The next few slides show some basic line conventions and their use.
4. Ask students after slide first appears: What do you notice about this sketch? (Making sure you lead them into looking at the different line conventions or types that appear in the sketch). Imagine if all the lines here had the same thickness, weight and consistency. What do you think this sketch would look like then? Ask students after slide first appears: What do you notice about this sketch? (Making sure you lead them into looking at the different line conventions or types that appear in the sketch). Imagine if all the lines here had the same thickness, weight and consistency. What do you think this sketch would look like then?
7. STOP PRESENTATION: Students have the line conventions needed for the activities in Lesson 1.2.STOP PRESENTATION: Students have the line conventions needed for the activities in Lesson 1.2.
8. The rest of this PowerPoint will be used in Unit 2.The rest of this PowerPoint will be used in Unit 2.
9. STOP PRESENTATION: Students have the line conventions needed for the activities in Lesson 1.2.STOP PRESENTATION: Students have the line conventions needed for the activities in Lesson 1.2.
10. STOP PRESENTATION: Students have the line conventions needed for the activities in Lesson 1.2.STOP PRESENTATION: Students have the line conventions needed for the activities in Lesson 1.2.
11. Line Conventions Understanding Line types and when to use them will help your sketches look cleaner and more professional.Understanding Line types and when to use them will help your sketches look cleaner and more professional.
12. Line Conventions Understanding Line types and when to use them will help your sketches look cleaner and more professional.Understanding Line types and when to use them will help your sketches look cleaner and more professional.
13. Line Conventions Understanding Line types and when to use them will help your sketches look cleaner and more professional.Understanding Line types and when to use them will help your sketches look cleaner and more professional.
14. Line Conventions Leader Lines: Leader lines are used to show dimensions of arcs, circles and to help show detail.
15. Though these standards relate to technical drawing, which is far more precise than freehand sketching, their conventions should be used as a guide when sketching.
16. When sketching complex objects, different line types will often overlap each other. Therefore, line precedence must be exercised.
17. The following are rules that govern line precedence in sketches and technical drawings.
Object lines take precedence over hidden and center lines.
Hidden lines take precedence over center lines.
Cutting plane lines take precedence over all others. This will make more since to the students when they do the multiview sketch activitiesThis will make more since to the students when they do the multiview sketch activities
18. You may want to save this slide until you start multiview sketch activity.You may want to save this slide until you start multiview sketch activity.
19. Precedence of Lines Object lines take precedence over the center lines you would see from the hole.
Object lines take precedence over the hidden lines you would see from the slot cut out in top view.
