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Just as the 2D CAD, first introduced in the 1980s, quickly become popular, 3D CAD has become the preferred method of visualizing a CAD design. So, what do you do with all of your legacy 2D CAD drawings now that you’re doing so much in a 3D design system, such as Revit, Solid Works, CATIA, or another 3D program? And how do you incorporate 2D design, since 2D drafting is still widely in use?

In the early days of large format scanner technology, there weren’t a lot of options, and most of what was available was very expensive. The first large format scanners were black and white only. There was no color scanning capability. In the early 1990’s color scanners were introduced and gradually, throughout the ensuing years, scanning technology has improved and scanner costs have come down, until today, nearly anyone who needs to scan large format documents can find a scanner that will do the job he needs to be done at a price he can afford to pay.

CAD (Computer Aided Design) refers to software systems that are used in the drafting, creation, modification, analysis, or optimization of a design. As opposed to hand drafting, CAD drafting increases productivity improves design quality and design communications. CAD drafting is used for architecture, engineering and construction (AEC), as well as machining and manufacturing.

3D CAD comes in different “flavors” that are used differently and that require the CAD technicians to design their virtual components in a different manner for each. Here is a list of the types of 3D CAD this article discusses:

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