Dimensioning Systems



In this lesson drafting students will be able to apply practical applications of dimensioning systems beyond the standard method of applying of chain dimensioning to a technical drawing. They will develop basic drawings using baseline dimensioning, datum dimensioning, and rectangular ordinate dimensioning. They are required to convert a drawing from the chain dimensioning system to the baseline dimensioning system and to complete two additional drawings using datum and ordinate dimensioning application.

Lesson Time

2 class periods - Each Period
55 Minutes

Industries / Subjects / Grades

Industries / Pathways
  • Engineering & Architecture Engineering & Architecture

Standards and Objectives

Related Instructional Objectives (SWBAT...)

  • Identify and use conventional dimensioning systems.
  • Use conventional dimensioning techniques to describe the size and shape aqccurately on an engineering drawing
  • Correctly place dimesnions lines, extension lines, dimensions, and anagles
  • Apply approproperiately, chain, base line, datum, and/or ordinate dimensioning systems.

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