The wide variety of options and the variants in IGES make it difficult to make recommendations. In general, however, the information you no longer wish to use is best removed while you are still in your CAD system.

When importing IGES files with several views, it is generally sufficient to import one view and rotate the 3D model to the correct orientation.

A number of CAD systems write IGES files where the scale of the object does not agree with that of the drawing. In such instances, files from the program using the Imperial system (inches) may be imported as though they were metric files. The result is a file that is far too small. In cases of this type, you should use the Scaling dialog to set the scale to 2540% when importing. This is the factor required for converting inches to metric values.