Might seem a bit of conflicting advice but I and others have bought the operating software for Boxford cnc machines direct from Boxford and have had assistance with various issues (mostly caused by my inexperience) for a few years now. Admittedly it is costly, around £600 I think, but it gets the machine up and running very quickly and with the security of support if needed.
Some owners have changed/upgraded theirs to closed loop or servos with different operating systems to get the machine running at today’s rates, but me - well I’m quite happy at 2000mm/min and 4000rpm (no ambition) ��