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What does a technical illustrator do with a design drawing?

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In the field of drafting, a technical illustrator—also known as a delineator—is responsible for converting preliminary or final design drawings into pictorial representations.1

These illustrations are typically created using perspective constructions and are often rendered in full color. The primary purpose of this work is to help others visualize the product, inform the public, attract investment, or promote sales. While technical illustrators may use various tools to produce these images, their role is distinct from the strictly utilitarian and accurate nature of standard engineering drawings, which are intended to guide fabricators and craftsmen in the production of a project.1