Engineering Design_CAD

  • Engineering Design_CAD is an independent study course that will enable the student, through a series of guided exercises and individual projects, to further develop skills and attitudes that they first learned in the Technical Drawing continuum. This course will focus on the basic concepts and methods needed to use the computer to create geometry which can then be used as output for technical graphics, engineering drawings, or CNC processes. This course can be repeated in a second year. Highly recommended for students interested in a career in Engineering. Limited to grades 11-12. 

    Links to Academic Expectations:

    Students will:

    1. improve communication skills by:
      1. reading information about principles of content information such as engineering design and technical manuals on operating CAD systems
      2. talking to other students either in team design projects or as peer-tutors, or to adults in describing the work they are involved in.
      3. carefully listening to instructions
      4. looking at and creating technical graphics
    2. improve innovation skills through problem-solving & decision making by:
      1. identifying communication problems
      2. brainstorming design proposals
      3. developing and critiquing their own and their peers' design solutions
    3. improve information literacy by:
      1.  researching various technical content sources.
      2. interviewing specialist to collect information for a design problem
      3. using technical manuals/tutorials to improve their proficiency with technical systems
      4. researching modeling methods and techniques
    4. improve artistic appreciation and expression by:
      1. designing 2-d technical graphics for the solutions to a variety of communications/design challenges 
      2.  completing a 3-d model of designs.
    5. use technology to
      1. learn more about the nature of Technology
      2. learn about the relationships between technology and society
      3. learn more about the design process
    6. apply the design process in using and maintaining technological systems and products and assessing their impact

    Interdisciplinary Connections:

    Engineering Design_CAD skills can be applied in areas related to design or those that graphically represent data. All disciplines, especially Mathematics, Science, Social Studies, as well as Fine and Performing Arts and the Humanities can make use of a the skills and concepts involved in understanding design, visual communications and spatial relationships.   Examples include, but are not limited to, Polyhedral construction and analysis (Math), Cartography and GIS applications (Social studies/science) and Set Construction and Design (Fine and Performing Arts)

    Essential Questions:

    1.      What is technology?

    2.      How do we communicate?

    3.      What is design?

    4.      What is a model?

    5.      How do we represent technical information?

    Instructional Units:

    In this year-long course, the student will be challenged to increase their skill level in communication and engineering design and the creation of complex geometric shapes. The year will begin with an introduction to Dimensioning concepts. In the second section the student will work through a series of graded assignments introducing them to a variety of construction and design challenges. This course’s focus will be on the following Standards for Technological Literacy.

    • 3 - The relationships among Technologies and the Connections between Technology and other Disciplines
    • 8-13 - Design
    • 17 - Information and Communication Technologies

    1.  Introduction to Computer Hardware
    2.  Introduction to CAD software interface
      1. Menus/Submenus
      2. File Management
    3. Introduction to CAD techniques
      1. 2 Dimensional entity creation and modification
      2. Locating entities
        1. coordinate systems
          1. Absolute v Relative coordinates
          2. Cartesian v. polar coordinate systems
      3. Drawing Guides
      4. Basic Transformations
        1. Moving
        2. Mirroring
        3. Rotations
        4. Arrays
      5. Detailing and Dimensioning
    4. 3 Dimensional entity creation and modification
      1. Working with primitives
      2. Modifying solids with Boolean operations
      3. Swept Solids
      4. Topographic manipulations
      5. Verifying Data 
      6. Detailing and Dimensioning
      7. Organizing Data: Files with multiple parts
        1. Using layers
        2. types of assemblies
        3. dealing with sections
      8. Features and Fasteners
    5. Design Drawing/ Modeling and Prototyping
      1. Rendering Techniques                 

    Student Outcomes:

    Parentheses refer to NH Technology Education Curriculum Guideline Outcomes

    Students will:

    1. use technical communications and modeling techniques using computer software & hardware for problem-solving in Engineering Design
    2.  identify appropriate terms & definitions used in Engineering Design (A2, B1)
    3. use advanced drafting techniques, design detail, and graphic production (B1, C1).
    4. apply visual-communication techniques as a problem-solving tool. (D1, E1)
    5. describe objects accurately using the principles of shape & size description. (A1, C1)
    6. evaluate communications systems. (F1, F2)
    7. plan, schedule and manage a communication activity or project. (E1)
    8. safely use a variety of materials and tools that are appropriate to complete a task in communications systems.  (A2, C1)

    Methods of Instruction:

    1. Lecture and guided classroom discussion
    2. Independent project design and problem solving
    3. Applied student research
    4.  Individual coaching and demonstrations
    5. Teacher and student-led demonstrations, videos, and guest speakers
    6. Guided reading, worksheets and note-taking

    Methods of Assessment:

    1. Participation and class discussion.
    2. Performance-based assessments
      1. Instructor’s observation of safe and proper tool and material use
      2. Achievement of Civic and social standards through demonstrated workplace skills
    3. Portfolio Assessment
      1. Portfolio consists of
        1. Student Notes
        2. Successful completion of assigned and student designed projects.
        3. Research related to their design projects
    4. Student Self Critique and Assessment

    Lesson Extensions:

    1. Independent design or communications projects using technical graphic methods for home or school-based outside assignments /challenges. (output will vary with nature of project)
    2. Readings/research based on information/communications technology related subjects.
    3. Graphically explore interdisciplinary concepts like polyhedra, string design, tessellations, symmetry, cartography etc.
    4. Participation in design-based competitions like Destination Imagination or the Technology Student Association.
    5. Peer tutoring

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