CADKEY

CADKEY was a popular PC-based 2D/3D CAD (Computer-Aided Design) software program. Developed initially by Micro Control Systems, Inc. (MCS) in the mid-1980s, it became known for its user-friendly interface and affordability, particularly in comparison to mainframe-based CAD systems of the time.

CADKEY distinguished itself through its constructive solid geometry (CSG) approach to solid modeling. Users could create complex parts by adding and subtracting primitive shapes, as well as performing boolean operations. This method contrasted with the boundary representation (B-Rep) modeling systems that were also emerging.

The software was widely used in mechanical engineering, manufacturing, and design applications, particularly for prototyping and production design. It offered features for drafting, dimensioning, and creating bill of materials. Its file format was a common exchange format for CAD data.

Over the years, CADKEY changed ownership several times. Kubotek Corporation acquired CADKEY in the 1990s and continued to develop and support the software under various names, including CADKEY Workshop and ultimately KeyCreator. While the original CADKEY name is less prevalent today, the underlying technology and design philosophy have influenced other CAD systems. KeyCreator, for example, is seen as a direct descendant and evolution of CADKEY. The software’s legacy lies in making CAD technology more accessible to a wider audience of engineers and designers.