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Rajesh Kumar B. 1Rajesh Kumar B.
Chapter 3
3D Part Modelling and Assembling
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Introduction Parametric is a term used to describe a dimension’s ability
to change the shape of model geometry if the dimension
value is modified.
Feature-based is a term used to describe the various
components of a model.
Parametric modelers are featured-based, parametric, solid modeling design program.
In parametric modeling, dimensions control the model.
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Part Modelling using CAD Software Any Design Automation Software Package Used to
Produce Parts Assemblies Drawings
3-D Object Creation Procedure
By Creating Features
Each Feature: 2-D Sketching & then 3-D Formation
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2-D Sketching Parametric Modeling
Procedure Sketch the geometry Dimension the geometry Modify the dimension values
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2-D Object Creation Methods Sketch Entities
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2-D Object Creation Methods Sketch Tools
Dimensioning
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Dimensioning Dimensions->Smart
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Relations Relations
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Features Examples
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Features Examples
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Features Examples
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Reference Geometry
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Viewing Examples