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What is CAD software?

Computer-aided design (CAD) is software that product developers use to create digital 2D drawings and 3D models. These designs are typically used to show objects that will later be manufactured and delivered to customers.

Why use 3D CAD?

First. a story, I once delivered a secret CAD software demonstration in te backroom of a custom care garage from a cable television show. We delivered the demo in secret because star of the show insisted that all their design was done by hand.