CE En 112 Engineering Drawing with CAD Application Chapter 2: Sketching and Text (Lecture A) Lecture Outline Technical sketching (2.1) Sketching technique (2.2) Proportions and construction lines (2.3) Introduction to projections (2.4) Multiview sketching technique (2.5)
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Chapter 2: Sketching and Text (Lecture A)
Means to create technical drawings
Level of detail of freehand technical drawing
*Note: If a drawing doesn’t look or feel right, it probably isn’t
Standard proportions for the United States flag
More to come in future lectures…
One-view, two-view, three-view sketches depending on the complexity of the object.
Refer to the text for the steps in determining which to use – we will also discuss more in later lectures…
Three image planes
Object – Image plane – The eye of the reviewer relationship
Horizontal, vertical, and depth
Three types of faces:
Inclined vs. Oblique faces:
Can you tell the difference?
Examples of lettering: