L14 - Parametric Modeling An Introduction GE 101...

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    Parametric Modeling GE 101 Engineering Graphics and Design An Introduction
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    Parametric Modeling Feature-based modeling Constraint-based modeling Also called: Parametric Modeling  uses  parametric  constraints  to define and easily modify  part  features , and to create relationships  between these features in order to create  intelligent part models. These virtual parts  can then be combined to form assembly  models.
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    Features Basic unit of a parametric solid model feature  is a 3D shape. Parts are  formed by their features Model features mimic actual design &  manufacturing features (e.g., fillet,  counterbore hole, draft angle) 2 basic kinds of model features: Sketched (e.g., extrusion, revolution, loft) Built-in (e.g., hole, chamfer, fillet, shell)  No sketch required
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    Parameters parameter  is a named quantity whose  value can be changed
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