Mach because Art fennerty is a Genius and a true Gent. Brian the new owner While not quite Art is still a TOP bloke with cheap affordable CNC controller at his foremost concern.

Has for the debate then it's a make your own mind up.? All I'll say is I've seen many migrate to EMC/linux Cnc only to drift back.

Also just wait for Mach4 things are about to get funky.!!!