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Title: A Computerized Automated Drafting Program
Author: Lester m. Kase
Source: American Gas Association 1972
Year Published: 1972
Abstract: A computerized automated drafting system is in operation in our drafting and design division. It consists of the preparation of isometric piping drawings with a bill of material. These drawings are used for our piping fabrication requirements. To produce these drawings a draftsman prepares a freehand isometric sketch of the segment of piping to be drawn on a preprinted tracing sheet. Some standard data is filled in longhand, the sketch is traced with a cursor on the digitizer and a set of punched cards is derived, which is processed by a computer whose output is used to drive a plotter which produces the finished drawing and bill of material.

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