This method is required for more advanced devices. I've now made a few servitors/AI tools which could not be created any other way. The process is one of using a machine to first engrave the form into a blank metal disc. Then a revolver drill with an exact step-controlled navigation system us used to cut out the form.
Although these two machine-tools can be mass produced, and the blank discs are factory made as well, the engraving and cutting process must be done by hand, one disc at a time. The discs cannot be mass-produced despite the similarity to regular number controlled machines, these tools do not accept a series of numbers entered by a paper slip or a computer as those we have on Earth, it just doesn't work that way. Each number must be entered from memory, by hand, which requires memorization of the entire series, and a complete grasp of its function.
When registering the new disc at the archive, a photographic reading is used, but this image cannot be used to reproduce the disc, the archive can only work to identify discs already in your possession, or to search for which discs have previously been created.
The manual machine tools, although mass produced, will become part of the person's mind and astral space as they work with it, forming a personal standard, adapted to the federation ScaleForm standard.