Hey Derek,
engineering education and professional practice are regulated very differently in European countries. In Germany, Austria and Switzerland, engineers are trained at universities, technical universities and universities of applied sciences; in Germany alone also via a dual course of study at a university of cooperative education, and in Austria alone also at Höhere Technische Lehranstalten (HTL) and comparable higher vocational schools (in a technical and industrial, agricultural and forestry or environment-related branch of education).
In Germany, only those who have completed a corresponding course of study with a degree are allowed to be called engineers, the term is legally protected. Traditionally, depending on the educational institution, the degrees are called Dipl.-Ing. (FH), Dipl.-Ing. (BA) or Dipl.-Ing. (TU) / (TH), and, after a doctorate, Dr.-Ing. which is also a title in Germany. Since the Bologna Process, the academic titles are B.Sc. or B.Eng. and M.Sc. or M.Eng.
Did you see the video where they drive the spindle current to its limits (and presumably the VFD input current too)? I find it helpful to know where the limit could be.