Apply line conventions.

Application of line conventions, known as the alphabet of lines, includes

• line weight
• construction/guide lines
• object/visible lines
• hidden lines
• section lines
• center lines
• dimension lines
• extension lines
• cutting plane lines
• phantom lines
• short- and long-break lines
• leaders
• border lines.

Process/Skill Questions:

• How does the alphabet of lines contribute to the clarity of a drawing?
• What is the purpose of each line type? Provide an example of each.