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Credit- Degree applicable
Effective Quarter: Fall 2020

I. Catalog Information


DMT 68A
Creo Parametric Surface Modeling
4 Unit(s)
DMT 68B4 Unit(s)
DMT 68C4 Unit(s)
DMT 68D4 Unit(s)
DMT 68E4 Unit(s)

 

Prerequisite: Any DMT 65A-E course.

Lec Hrs: 24.00
Lab Hrs: 72.00
Out of Class Hrs: 48.00
Total Student Learning Hrs: 144.00

Parametric and free-form surfacing methodologies in Creo are used to create organic 3D shapes that follow a processed-based (or task-based) approach to modeling. This course includes the application of multifaceted surface features in designing product models and molds for industry.


Student Learning Outcome Statements (SLO)

 

Create and edit complex Creo Parametric Surfacing design using Advanced 3D Surfacing and Interactive Surface Design Extension (ISDX) Modeling techniques & methodologies.


II. Course Objectives

A.Create surfaces for product development.
B.Manipulate surface geometry.
C.Apply surface construction geometry commands.
D.Extract and understand surface information.
E.Extract and replace model faces using surface geometry.
F.Derive surfaces from boundary curves.
G.Demonstrate variable section sweeps.
H.Import and utilize external geometry.
I.Demonstrate Interactive Surface Design Extension (ISDX) tool sets.
J.Combine parametric controls with free-form surfacing
K.Apply analysis tools to build high quality surface
L.Apply master modeling techniques to build surfaces

III. Essential Student Materials

 None

IV. Essential College Facilities

 CAD computer laboratory with Creo software

V. Expanded Description: Content and Form

A.Create surfaces for product development.
1.Introduction to Surface interface.
2.Surface features.
3.Create surfaces.
4.Capped ends.
5.Trim and nurbed surfaces.
6.Protrusions, cuts and solidify surface features.
B.Manipulate surface geometry.
1.Trimming surfaces features.
2.Transforming surfaces.
3.Extending surfaces.
C.Apply surface construction geometry commands.
1.Datum points.
2.Datum curves.
3.Splines
4.Redefining datum curves.
D.Extract and understand surface information.
1.Parent-child relationships.
2.Surface analysis.
E.Extract and replace model faces using surface geometry.
1.Introduction.
2.Surface replacement.
3.Patches.
F.Derive surfaces from boundary curves.
1.Introduction.
2.Surfaces with C1 and C2 continuity.
3.Boundary blend control points.
G.Demonstrate variable section sweeps.
1.Introduction.
2.Involute surfaces using a variable section sweep.
H.Import and utilize external geometry.
1.Introduction to available tool sets.
2.Working with imported geometry.
3.Using the geometry as imported.
4.Modify geometry non-parametrically with Flexible modeling
5.Import data doctor to repair surfaces
I.Demonstrate Interactive Surface Design Extension (ISDX) tool sets.
1.Introduction to Freeform Surfacing
2.Full associativity of surfaces and curves
3.Import and trace sketch
4.Creating and editing curves in ISDX
5.Curvature analysis
6.Parametric controls to drive Freeform surfaces
J.Combine parametric controls with free-form surfacing
1.Solidify surface quilt
2.Seed and boundary surfaces
K.Apply analysis tools to build high quality surface
1.Exhibit the deviation from a surface or datum plane
2.Display curves that represent the reflection due to linear sources of light
3.Show a color plot of the shadow area cast by a surface
L.Apply master modeling techniques to build surfaces
1.Top down design
2.Skeleton models
3.Creating sub-components from driving geometry

VI. Assignments

A.On-line video lectures, viewed as assigned during the course.
B.CAD advanced surface projects as assigned
C.Reading from textbooks and other references.

VII. Methods of Instruction

 Lecture and visual aids
Discussion of assigned reading
Homework and extended projects
Laboratory discussion sessions and quizzes that evaluate the proceedings weekly laboratory exercises

VIII. Methods of Evaluating Objectives

A.Accuracy and Completeness of assigned advanced CAD projects.
B.Mid-term examination covering assigned video lectures, textbook reading and advanced CAD projects. Exam will be evaluated on completeness of solid modeling requirements.
C.Final examination evaluating student’s comprehensive understanding of advanced Creo Parametric CAD surfacing as defined in the grading rubric.

IX. Texts and Supporting References

A.Examples of Primary Texts and References
1.Steven G. Smith, Creo Parametric 4.0 Surface Modeling, CADQUEST, 2018
B.Examples of Supporting Texts and References
1.PTC, PTC University Precision LMS, Surefac and ISDX moduals, PTC, 2017

X. Lab Topics

A.Surface geometry
B.Geometry commands
C.Surface information
D.Model faces
E.Boundary curves and section sweeps
F.Interactive Surface Design Extension (ISDX)
G.Analysis tools