This paper explores the concept of user programming languages for CAD systems. A functional explanation of these languages is given, along with examples of how such extensions to a basic CAD system can be used to improve the productivity of the CA D system. A three step approach to improving system productivity through user created software is also outlined. This paper is also an attempt to demonstrate the need for further development of user programming languages by CA D manufacturers. The utility of these languages is clearly demonstrated, yet few CAD manufacturers currently support any products of this type. More interaction between users and CA D suppliers is required.
computer-aided design, user programming language
The computer-aided design technology now available to industry promises dramatic productivity increases in all areas of design and drafting, but are these claims justified? Is simply replacing traditional drafting boards with CAD workstations enough? At Husky Injection Molding Systems, it has been found that productivity increases can be obtained, but only through the use of extensions to a simple CAD system. The most significant of these extensions is the availability of a user programming language. With this extension to Husky's basic CAD system, the productivity increases promised by the new technology have been realized. This paper will examine the concept of CAD user programming languages and show how they can be used to improve the efficiency and productivity of CAD installations.