Computer aided design in a mill environment: a case history

The author presents a case study of the application and development of a personal-computer-based CAD (computer-aided design) in a mill environment. The emphasis is on practical aspects of the consistent use of this software tool. The following issues are examined in some detail: the development of a CAD standards manual; the definition of a layering system; the prototype drawing; and the use of blocks and symbols. It is found that personal-computer-based CAD systems can increase productivity in a cost-effective manner. In order to realize long-term gains from the use of this tool, a structured approach is required. The key steps in this process are to start with a limited scope of activities, expand in steps, and develop a long-term vision. From a mill perspective, the benefits of standardization of drawing formats and hardware installation have been one of the advantages of CAD. The ease of making revisions has helped in assuring that the drawings are being kept up to date.<>