A designer wants the hole in the block shown (figure 1a) to remain centered even when the length of the block changes. To better understand how parametric modeling works, let us consider figure 1 above. How Parametric Modeling Worksįigure 1: Parametric Modeling Example ( source) Instead, they think about features, like faces and edges, that correspond to the model’s physical entities. In fact, design professionals rarely think along the lines of these primitives whenever they are creating a part.
Dealing with these primitives is less desirable, especially when designing complex parts. You see, a conventional 3D model comprises primitive geometric entities such as curves and points and solid primitives such as cylinders, cones, spheres, boxes, and wedges. This paradigm is sometimes also known as feature-based parametric modeling. Relations within the sketch profile (sketch relations).
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