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Having a better understanding of CAD |
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| Date Added: March 02, 2010 08:23:32 AM | |
| Author: amtanda12 | |
| Category: Arts: Movies: Trivia | |
CAD, shortened from Computer-aided design, is used for designing real and virtual objects. CAD is not only shapes. The output of CAD often must also consist of symbolic information, such as materials, processes, dimensions and tolerances according to application-specific conventions. CAD can be deployed to design curves and figures in 2-dimensional (2D) space, and curves, surfaces and solids in three-dimensional (3D) space. Computer-aided design is extensively used in a number of applications, such as automotive, ship-building and aerospace industries, industrial and architectural design, prosthetics and others. CAD is also extensively deployed to make computer animation for special effects in films, commercials and technical instruction books. CAD is deployed for designing tools and machinery and for drafting and designing all kinds of structures, from residential buildings to large commercial and industrial structures, for example hospitals and factories. Computer-aided design is principally deployed for detailed engineering of 3D models and/or 2D drawings of physical constituents, but it is also used in the engineering process. CAD has become an especially significant technology among computer-aided technologies, because it saves time and money. In the late 1980s when the Computer-Aided Design programs became readily available, there started massive layoffs in drafting departments of some firms, especially small and mid-size ones. A CAD operator could supplant 3-5 drafters using traditional methods. Moreover, many engineers began to do their own drawing projects, thus the need for traditional drafting departments disappeared. Consequently, a lot of people were laid off. Since the advances were high-priced, only large corporations could afford them. Thus, small firms were unable to compete against giants that extensively deployed CAD. Nowadays, hardware and software costs are reasonably priced. Even high-end packages need cheaper platforms and some even support multiple platforms. |
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