This is a post by Cat McClintock on PTC site.

Engineers have long known that the key to keeping costs low is to design products with manufacturing in mind. So they choose easy-to-machine materials, develop modular designs, enlist standard components, and so on.

In fact, design for manufacturing (DFM) is such an essential part of product development that 3D CAD systems today include many features to support the practice (think materials libraries, toolpath animations, and mold analysis).

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