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CCOG for CADD 255 Summer 2022

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Course Number:
CADD 255
Course Title:
Kinematics Drafting
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:

Course Description

Introduces mechanisms that translate motion and force, including cams, gears, belts/pulleys, and chains/sprockets. Introduces components such as pawls ratchets, linkages, and levers. Covers the creation of drawings for stock (shelf) items and custom designs. Prerequisites: CADD 160 and CADD 175. Audit available.

Intended Outcomes for the course

Upon completion of the course students should be able to:

  1. Create technical mechanical drawings using kinematics principles.
  2. Apply ANSI-ASME industry standards in the preparation of technical mechanical drawings.
  3. Research and apply online resources to identify parts and incorporate them in the preparation of technical mechanical drawings.
  4. Utilize the Machinery’s Handbook to determine the correct size tolerance for detail parts on technical mechanical drawings.

Outcome Assessment Strategies

  • Individual assignments from the required textbook, or additional appropriate sources
  • Group projects working together to solve problems.
  • Quizzes
  • Midterm and final exam

Course Content (Themes, Concepts, Issues and Skills)

1 Belts and Chains

  • Identify and explain a difference between types of standard design belts and types of standard design chain drives.
  • Identify and explain the devices on which the different types of belts and chains ride.
  • Identify and explain the selection processes required for belt and chain drives by power and application specifications.

2 Gears

  • Identify and explain different types of rotating gear drives.
  • Identify and explain different types of linear or interrupted motion gear drives.
  • Identify and explain the selection processes required for the gear drives by power and application specification.

3 Cams

  • Identify and explain types of cam designs and their advantages/limitations.
  • Identify and explain cam nomenclature.
  • Identify and draw cam motions.
  • Identify and explain cam follower types and design.
  • Identify and explain the selection processes required for cam design by motion and power application.

4 Linkages and Levers

  • Identify and explain terms and nomenclature of linkages, levers, cranks and pawls. Identify and explain motion nomenclature and displacement diagrams.
  • Identify and demonstrate motions involving ratchets and other motion selectors.

5 Working Drawings

  • Identify and demonstrate motion of linkages, levers and cranks, and pawls.
  • Identify and demonstrate working drawings including dimensioning/tolerancing with ASME Y14.5M-1994 Geometric Dimensioning and Tolerancing where applicable.
  • Identify and demonstrate displacement diagrams on drawings where applicable.
  • Identify and specify on drawings, a material selection and related notations and specifications.