Copy, scale, mirror and pattern

Always copy, scale, mirror or pattern original geometry whenever possible. Not only does this save time, but in many Solid Modeling systems, a more efficient model database will result. This can contribute to reduced file sizes and increased interactive performance. Some systems today will now allow you to copy, scale, mirror and pattern other patterns and patterns or patterns. It should be note however, that the exact coordinate location values of objects that are copied, scaled, or mirrored, are subject to being rounded off by system tolerances.