ps: i’m gonna need you to put everything in your life on hold and only make marble sculptures because I could watch these videos all day, every day, forever.
One thought- If the ring was moved forward a bit, there might be a couple of advantages. One is the motor could be mounted 180 degrees, which would make the motor body less obtrusive. Because there wouldn't be a need for the spindle to clear the pegs around the ring, the shaft could be shortened reducing the amount of space taken by the motor and possibly better hide the wiring. With the ring sitting forward a bit, the track for the balls might have sufficient space to perhaps to pass through the ring to the rear and back. Not sure or not if that would add to the visual appeal, but it does at least offer options.