A typical PCB milling machine would cost 30000USD at the lower end. But looking at boards produced by this machine, it doesn't come close to the quality of a mi

A typical PCB milling machine would cost 30000USD at the lower end. But looking at boards produced by this machine, it doesn't come close to the quality of a milled board. I think you could probably develop a milling machine with a similar price point, and some people I believe have used cheap Proxxon (MF70) mills to cut PCBs (the MF70 costs about 400USD). So I'm not sure what the advantage of extruding here is. I guess it would be interesting if they can do multilayer boards, but from the results shown that doesn't look like a possibility.