Portland Community College | Portland, Oregon

Course Number:
CMET 237
Course Title:
MET Applied Computer Aided Design
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:
Special Fee:

Course Description

Presents topics in solid modeling for mechanical/manufacturing engineering computer aided design and drawing, meeting industry standards. Prerequisites: ENGR 102. Audit available.

Intended Outcomes for the course

Upon completion of the course, students should be able to:
1. Create solid models using a 3D feature-based, constraint-based, and fully associative parametric solid modeler,
including features such as holes, cuts, extrusions, fillets, and chamfers.
2. Generate revolved parts, swept features, and blends.
3. Generate views for working engineering drawings from the completed solid model, and dimension these views.
4. Develop basic assemblies of multiple solid models, and generate assembly drawings from them.

Outcome Assessment Strategies

Individual and full class discussion; lab drawing assignments; exams; and a final project may be used to assess outcomes.

Course Content (Themes, Concepts, Issues and Skills)

  1. Themes", Concepts and Issues
  2. Mechanical and manufacturing engineering and technology students must be able to visualize solid objects to succeed in subsequent mechanics and design courses.
  3. Engineers and technologists need to be able to communicate with each other, and with manufacturing and construction personnel, using graphical representations of physical objects.
  4. Three-dimensional solid modeling software is widely used in the mechanical design and manufacturing engineering professions.
  5. Many engineering graduates enter the workplace by performing solid modeling of parts and assemblies and computer-aided drafting.
  6. Learning to use one brand of solid modeling software should ease learning another brand of solid modeler.


  1. Become familiar with the part modeling user interface of the selected solid modeling software program (e.g. understanding the terminology of part modeling module€™s menu items and identifying related icons)
  2. Become familiar with default datum planes and axes so that the solid model created of the part is predictable and modifiable.
  3. Become familiar with the sketching interface (sketcher), sketcher menu items and related icons.
  4. Using the sketcher, sketch a cross-section and constrain the sketch by creating dimensions from default reference datum planes and/or axes.
  5. Regenerate the sketch and fix any errors that prevent a successful regeneration.
  6. Create and constrain a 3D part by extruding in one and two directions a regenerated 2D sketch or profile, understanding the constraints or design intent of the model.
  7. Create and constrain a 3D part by revolving a closed 2D sketch or profile about a centerline, understanding the constraints or design intent of the model.
  8. Create and constrain cuts to be made to a 3D part by extruding a successfully regenerated 2D sketch or profile of the cut€™s cross-section in one and two directions.
  9. Create and constrain cuts to be made to a 3D part by revolving a successfully regenerated 2D sketch or profile of the cut€™s half cross-section about the selected axis of revolution by the desired angle and direction of rotation.
  10. Modify the geometry of an extruded or revolved solid model by displaying and revising dimensions from user-defined or default datum planes or axes.
  11. Regenerate the modified geometry to update the solid model.
  12. Replicate common features in a solid model by using part-modeling options to copy, mirror, or pattern features.
  13. Be aware that the intended dimensioning scheme of the replicated features depends on the way the dimensional constraints are specified on the initial feature that is used to copy from, mirror, or serve as the pattern leader.
  14. Become familiar with the drawing module interface in order to specify and generate necessary orthographic projected views of the updated solid model.
  15. Become familiar with the dimensioning options available in the drawing module.
  16. Document the solid model by producing fully-dimensioned, and annotated engineering detailed drawings using the options provided in the drawing module.
  17. Become familiar with the assembly modeling option of the part modeling module and constrain the first part model to the assembly work-space by employing default assembly datum planes and axes.
  18. Create and constrain an assembly model of previously modeled parts by mating, aligning, and/or inserting the related features to be joined between two or more part models.
  19. Document the assembly by producing an assembly drawing with necessary views, assembly dimensions, assembly notes, and a bill of materials. Use options provided in the drawing module.

Competencies and Skills
The student will be able to:

  1. Communicate effectively with solid-modeling and related graphical techniques.
  2. Demonstrate competency using a 3D feature-based, constraint-based, and fully associative parametric solid modeling software.
  3. Create solid part and assembly models for use in sophomore, junior, and senior engineering courses.
  4.  Visualize three-dimensional solids from two-dimensional pictures.
  5. Create a portfolio of solid models, drawings, and assemblies to demonstrate their abilities to potential employers.