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Three-Dimensional Modeling

Three-Dimensional Modeling. Types of Models. Wireframe Surface Primitive Solids. Wireframe Models. Wireframes do not make good models. The same edge and vertex list can describe different objects depending on how they are interpreted. Surface Model. Wireframe with a cover Hollow

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Three-Dimensional Modeling

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  1. Three-Dimensional Modeling

  2. Types of Models • Wireframe • Surface • Primitive • Solids

  3. Wireframe Models

  4. Wireframes do not make good models The same edge and vertex list can describe different objects depending on how they are interpreted.

  5. Surface Model • Wireframe with a cover • Hollow • Only benefit: visualization

  6. Primitives • Three-Dimensional Geometric Figures are combined to form a model

  7. Common Geometric Primitives

  8. Boolean Operations

  9. Solids Modeling • Mechanical Engineering Applications • Begin with a “Solid” piece of material • Manufacture of Prototypes • Design to Manufacture • Recently Available • AutoDesk and GeoPak are developing Civil Engineering Applications

  10. Solids Modeling Example: Science Fair Rotor was drawn using ProEngineer Rotor drawing was downloaded to the CNC machine which then produced the part.

  11. Solids Modeling Example: Science Fair Completed Rotor Generator

  12. Methods of constructing models • Coordinates • Extrusion • Primitives

  13. Coordinate Method

  14. Coordinate Method (continued)

  15. Combination of Methods

  16. MicroStation Wireframe

  17. Solids Modeling Parametric Specification of a Cylinder

  18. Solids Modeling Software

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