ME180_Lecture_14_ParametricModeling

ME180_Lecture_14_ParametricModeling - Parametric Modeling...

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Parametric Modeling and Design
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Parameters Control the Geometry ± Size parameters ± Dimensions ± Geometric parameters ± Constraints ± Tangent ± Collinear ± Concentric
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± Parameters can change ± Parameters are similar to variables ± Unlike variables parameters are never abstract
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Feature Based Modeling ± Combinations of features ± Add, Subtract, Intersect ± Similar to other solid modelers ± CSG and BREP definitions ± A feature is a basic unit of a parametric solid model ± Holes
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± Boss ± Slot ± Pocket ± Pad ± Difference between BREP and a CSG modeler ± Changing parameters in a Parametric modeler
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Planning Parts for Design Flexibility ± Design Intent ± Key dimensions and relationships must be maintained ± How will components fit together ± How will components change as the design evolve ± By thinking about this upfront you can design components and features as foundations
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± Parametric modeling parallels the design process ± Start with a 2D sketch of a portion of the component ± Just like a pencil and paper ± Rough drawing ± Constrain
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Over and Under constrained ± Can you model with these conditions
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This note was uploaded on 07/25/2008 for the course ME 180 taught by Professor Chalou during the Spring '08 term at Michigan State University.

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ME180_Lecture_14_ParametricModeling - Parametric Modeling...

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