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Parametric Modeling Fundamentals, ? Create Simple Extruded Solid Models ? Understand the Basic Parametric Modeling Procedure ? Create 2-D Sketches ? Understand the “Shape before Size” Approach ? Use the Dynamic Viewing Commands ? Create and Edit Parametric Dimensions. The feature-based parametric modeling technique enables the designer to incorporate the original design intent into the construction of the model. The word parametric means the geometric definitions of the design, such as dimensions, can be varied at any time in the design process. In SolidWorks, the parametric part modeling process involves the following steps: Create a rough two-dimensional sketch of the basic shape of the base feature of the design, Apply/modify geometric relations and dimensions to the two-dimensional sketch, Extrude, revolve, or sweep the parametric two-dimensional sketch to create the base solid feature of the design, SolidWorks provides many powerful modeling and design-tools, and there are many different approaches to accomplishing modeling tasks. The basic principle of feature-based modeling is to build models by adding simple features one at a time. Creating Rough Sketches, With parametric modeling, we can use the computer to elaborate and formulate the design idea further during the initial design stage. This approach is the main advantage of parametric modeling over conventional solid-modeling techniques. Select the Sketch icon in the control area by clicking once with the left-mouse-button; this will display the Sketch toolbar in the CommandManager. Select the Sketch button on the Sketch toolbar to create a new sketch. Notice the left panel displays the Edit Sketch PropertyManager with the instruction “Select a plane on which to create a sketch for the entity.” Apply/Modify Relations and Dimensions. Changing the Dimension Standard.
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