...
In your factory, you often aim to produce diamonds of specific cut. You want scans of such stones to be more precise. Take one of the good stones, scan it (for example, on Helium Polish scanner with ASCII model as output), then apply Smart Normalize to remove any imperfections of the built model, then save the result as a sample. Later scan your stones with this sample selected as a method - your models will be of much more quality.
...