Maricopa Community Colleges  DFT111   19976-19985 
Official Course Description: MCCCD Approval: 05/27/97
DFT111 19976-19985 L+L 3 Credit(s) 6 Period(s)
Technical Drafting II
Dimensioning and tolerancing, sectional views and auxiliary views. Prerequisites: DFT110, DFT252AA, or equivalent.
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MCCCD Official Course Competencies:
 
DFT111   19976-19985 Technical Drafting II
1. Find the true shape of inclined surfaces. (I)
2. Plot curves on inclined surfaces. (I)
3. Complete correct auxiliary views of objects. (I)
4. Find true lengths of lines by revolution. (II)
5. Describe fabrication and casting techniques. (III)
6. Dimension an object in either English or metric measurements. (IV)
7. Calculate tolerances and allowances for an object. (V)
8. Define thread symbols. (VI)
9. Define terms for bolts, studs, and screws. (VI)
10. Draw complete working drawings, using proper line work and dimensioning techniques. (VII)
11. Reproduce drawings on a blue line machine. (VIII)
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MCCCD Official Course Outline:
 
DFT111   19976-19985 Technical Drafting II
    I. Auxiliary views
        A. Plane
        B. Reference plane
        C. Dihedral curves
        D. Plotted curves
        E. Ellipses
      II. Revolutions
          A. Axis perpendiculars
            1. To frontal plane
            2. To horizontal plane
            3. To profile plane
          B. Revolution of points
            1. Normal axis
            2. Inclined axis
            3. Oblique axis
          C. Revolution of lines
          D. Revolution of circles
          E. Counterrevolution
        III. Shop processes
            A. Hand tools
            B. Machine tools
            C. Castings
            D. Fabrication
          IV. Dimensioning
              A. Size and location
              B. Dimension and extension lines
              C. Arrowheads and leaders
              D. English versus metric
              E. Do's and dont's of dimensioning
            V. Tolerancing
                A. Definition of terms
                B. Specifications of tolerancing
                C. Symbols for tolerancing
                D. Maximum material condition
                E. Form tolerances
              VI. Threads, fasteners, and springs
                  A. Definition of terms for threads
                  B. Thread symbols
                  C. Definitions or terms for bolts, studs, and screws
                  D. Keys
                  E. Pins
                  F. Rivets
                  G. Types of springs
                    1. Helical
                    2. Compression
                    3. Torsion
                VII. Design and working drawings
                    A. General types of drawings
                      1. Empirical design
                      2. Scientific design
                    B. Detail drawings
                    C. Assembly drawings
                    D. Patent drawings
                  VIII. Reproduction and control of drawings
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