Extracting Information from a CAD/CAM System

I am now going to review a past design of mine that got me on the road to the insights contained in this book.

I was supporting a design center in which engineers used a CAD/CAM system to make drawings of sheet metal parts. An example of one of these parts is shown in Figure 3-1.

Figure 3-1. Example of a piece of sheet metal.

My problem was to write a computer tool to extract information from the CAD/CAM system so that an expert system could use it in a particular way. The expert system needed this information in order to conrol the manufacturing of the part. Since the expert system was complex to modify ...

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