Awesome.
So were the facets cut before or after the turning? Almost looks like after to me. Indexing?
Beautiful work. Is the mill a segmenting or did you index to get the facets? The axis of the camera should be plumb to the object to produce a vertical image. Otherwise you end up with a leaner. Much easier to fix a small lean in editing.
Charles
the facets are unique!
what mechanism did you decide to use?