Learning Objectives:
- Introduce professional CAD software (OnShape) for advanced 3D modeling.
- Develop skills in sketching, extruding, and applying features.
- Understand the relationship between precise design and successful printing.
- Experience iterative design through testing and refining models.
- Begin exploring parametric modeling concepts.
Overview of the Course:
- Introduction to OnShape and Basic Modeling:
- Students transition to OnShape, learning foundational skills in professional CAD software.
- Designing, Printing, and Iteration:
- They create functional objects, print their designs, and refine them based on evaluations, emphasizing the iterative design process.
- Advanced Features and Presentation:
- Introduction to advanced modeling techniques and parametric design concepts, culminating in presentations of their refined projects.
Session 1: “Introduction to OnShape and Basic Sketching”
Description:
Students are introduced to OnShape, learning basic navigation and sketching tools. They create simple 2D sketches using basic shapes like rectangles and circles.
Session 2: “From Sketches to 3D Models: Extrude Feature”
Description:
Students learn how to turn their 2D sketches into 3D models using the extrude feature. They create basic 3D shapes such as boxes and cylinders.
Session 3: “Printing Our First Models”
Description:
Students prepare their basic 3D models for 3D printing. The teacher guides them on exporting their models as STL files and setting them up in the slicing software. Students observe the 3D printing process as their models are printed.
Session 4: “Exploring 3D Printing and Model Evaluation”
Description:
Students examine their printed models, discussing how the digital design translated into a physical object. They reflect on any differences and think about improvements.
Session 5: “Advanced Sketching Techniques”
Description:
Students return to OnShape to learn more advanced sketching tools, such as lines, arcs, and splines. They practice creating more complex 2D profiles.
Session 6: “Introduction to Revolve and Other Features”
Description:
Students learn how to create 3D models using the revolve feature, turning their sketches into objects like vases or simple cups.
Session 7: “Adding Details: Fillets and Chamfers”
Description:
Students enhance their models by adding fillets and chamfers to edges, making their designs more refined and functional.
Session 8: “Designing Functional Objects and Preparing for Printing”
Description:
Students design a simple functional object, such as a pen holder or a custom keychain, applying the features they’ve learned. They prepare their models for printing.
Session 9: “Printing and Evaluating Functional Designs”
Description:
Students print their functional designs and evaluate the results, considering aspects like usability and aesthetics.
Session 10: “Reflection and Presentation”
Description:
Students present their projects to the class, sharing their design process, challenges faced, and what they learned. They discuss ideas for future projects and how they can continue improving their skills.