[jf___]

Robotic wire cutting for architectural purposes has been a relevant innovation. That process is an order of magnitude more effective: you're cutting with a wire rather then a chipping a way with a milling bit. With a wire you're cutting 2 faces at a time, which is an important advantage over milling.

These diamond wires are also used for quarrying the stone.

https://vimeo.com/94076571

The BRG Group at ETH Zürich has delivered some stunning project exploring a modern take on stereotomic / stone construction, both in terms of fabrication and engineering

https://vimeo.com/167868985