David Liu

3D Geometric Model Design

In this interdisciplinary project, learners will integrate Geometry (Math) and basic Computer Science (3D CAD modeling) to create a new 3D-printable object by combining common geometric solids (cubes, rectangular prisms, cylinders, cones, etc.). Real-World Context. Students imagine a scenario where they must design a small object for a specific function such as an organizer, a desk accessory, or a decorative figurine. They learn how shape choice, dimensions, and angles affect both the visual appeal and structural stability of the item. Core Activities. Ideation & Sketching: Students research real-world objects, brainstorm designs, and sketch initial ideas using geometric solids. CAD Modeling: Students import or construct shapes in a user-friendly 3D CAD environment (e.g., Tinkercad or Fusion 360), focusing on alignment, scaling, and boolean operations (union/subtraction) to create a combined model. Math Connections: They calculate approximate surface area, volume, and predict 3D print times or materials used. This might also involve problem-solving around stability and weight distribution. Iterative Prototyping: Students print small-scale prototypes, observe flaws or design improvements, then adjust the model and reprint if time allows. Presentation & Reflection: Learners showcase their final 3D-printed object, explain the design choices, and reflect on how math and computer science skills drove their success.

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3D Geometric Model Design

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