It revolutionizes prototyping by using lasers to quickly create plastic polymer models (directly above) from 3D CAD data (top). May 1988 First demonstrated at the November 1987 Autofact Expo in Detroit, the Stereo Lithography Apparatus from 3D Systems becomes commercially available in June 1988. The key is a CAD data translator, called SET (Standard D'Echange et De Transfert), under active development since 1983 by Aerospatiale engineers. June 1986 Major aircraft makers in Europe develop the Airbus A320 jet entirely on CAD systems by swapping graphic design data among disparate and remotely located systems. Despite many 2D drawing and editing functions, the program does not allow entities to be broken apart or dragged, nor does it provide auto-dimensioning. March 1986 With its Macintosh-like menus, Eas圜AD was designed for CAD phobics and general office use.
A single-user program written in C, it supports the IGES standard, enabling data transfer to mainframe systems. March 1986 Autodesk's AutoCAD is the most popular microcomputer design program, with editing facilities such as polylines, curve fitting, and interactive object selection. The user is then able to "walk around" an object to get a feeling of its solidarity and point at a feature to modify it directly.
Support for free-form surfaces, such as blends between edges, is also limited and considered a CAD feature of the future.ĭecember 1983 The Romulus solid geometric modeler, developed in Sweden, permits designers to create 3D parts with hidden lines shown (directly above) or removed (top). November 1982 Modeling systems of the day are able to work with planes, cylinders, cones, spheres, and tori, but have difficulty creating objects with interior holes or more than four edges. March 1982 Solid modeling, considered a toy by some users of computer-aided design software but an industry panacea by others, has proliferated to CAD systems from 17 vendors, including Computervision (used to create this model), as well as IBM, Prime, Control Data, and Applicon.
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