Monumental Labs[0] takes a mixed approach to autonomy and human craftsmanship. For fine detail pieces like marble sculpture, the robot takes the project from stone block to a rough, 3D printed look. Then a human craftsman does fine work and polishing. For something like a plinth on a stone structure, the robot's output is good enough since the piece will only ever be viewed from afar (e.g. street level for a balcony).
[0]: https://www.monumentallabs.co/