Maricopa Community Colleges  DFT102   19964-20086 
Official Course Description: MCCCD Approval: 07/22/08
DFT102 19964-20086 L+L 3 Credit(s) 6 Period(s)
Introduction to Technical Graphics
Graphical communications in technology. Orthographic and axonometric projection, technical sketching, dimensioning practices. Elements of descriptive geometry.
Prerequisites: None.
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MCCCD Official Course Competencies:
 
DFT102   19964-20086 Introduction to Technical Graphics
1. Use graphics (engineering drawing and sketching) as an effective tool/integral part of engineering analysis, design, and communication. (I, II)
2. Identify and demonstrate use of drafting tools in creating a technical drawing. (I)
3. Demonstrate use of vertical, inclined, upper case, and lower case lettering. (I)
4. Identify and demonstrate use of various types of lines in technical graphics. (I)
5. Produce specified views including orthographic, auxiliary, and sectional views through information gained by spatial visualization. (II, III)
6. Identify and demonstrate principles of descriptive geometry in obtaining graphical solutions to a variety of engineering problems. (III, IV)
7. Apply modern engineering drawing practices and conventions. (IV, V)
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MCCCD Official Course Outline:
 
DFT102   19964-20086 Introduction to Technical Graphics
    I. Use of Graphic Tools
        A. Marking tools
          1. Drawing pencils
          2. Inking pens
          3. Sharpeners
          4. Erasers
        B. Guiding tools
          1. Drafting machine
          2. Triangles
          3. Templates
          4. Dividers/compass
          5. Erase shield
        C. Measuring tools
          1. Scales
            a. Engineer
            b. Architect
          2. Protractor
        D. Construction techniques - obtaining geometric shapes using compass
        E. Lettering
          1. Vertical
          2. Inclined
          3. Upper case
          4. Lower case
        F. Types of lines
          1. Object
          2. Hidden
          3. Center
          4. Extension
          5. Dimension
          6. Section
          7. Break
          8. Phantom
          9. Construction
          10. Cutting plane
          11. Leaders
      II. Sketching and Conceptualization
          A. Orthographic portrayal system and view selection
          B. Oblique
          C. Axonometric - isometric
          D. Perspective
        III. Orthographic System
            A. Orthographic projection
              1. Reference planes
              2. Locations in space
              3. Point projection
            B. Principal views
              1. Horizontal
              2. Frontal
              3. Profile
            C. Section views
            D. Auxiliary views - edge view of a plane
          IV. Spatial Relationships of Geometric Elements
              A. Notation system
              B. Techniques for constructing fundamental views
                1. True length of a line
                2. Point view of a line
                3. Edge view of a plane
                4. Normal (true size) view of a plane
              C. Relationship of lines and planes
                1. Line-to-line
                  a. Intersecting
                  b. Non-intersecting
                2. Plane-to-plane
              D. True angles
                1. Between a line and a line
                  a. Intersecting
                  b. Non-intersecting
                2. Between a line and a plane
                3. Between a plane and a plane
              E. Line specification
                1. Bearing
                2. Slope
              F. Plane specification
                1. Strike
                2. Dip
              G. True distances
                1. Shortest distance between a point and a line
                2. Between two lines
                  a. Shortest distance
                  b. Shortest vertical distance
                  c. Shortest horizontal distance
                  d. Shortest distance with specified grade
                  e. Shortest distance with specified bearing
              H. Rotation method
                1. Obtaining fundamental views
                2. Obtaining true angles
            V. Applications and Conventions
                A. Dimensioning
                  1. Conventions
                  2. Scaling
                  3. Symbols
                  4. Lettering
                    a. Placement
                    b. Sizing
                  5. Threaded fasteners
                B. Tolerancing
                C. Section views - types of sections
                D. Intersections
                  1. Edge-view method
                  2. Cutting-plane method
                  3. Intersection of
                    a. Plane and a prism
                    b. Plane and a cylinder
                    c. Two prisms
                    d. Two cylinders
                E. Developments
                  1. Prisms
                  2. Cylinders
                  3. Pyramids
                  4. Cones
                F. Computer-aided graphics demonstration
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