Now we have a linux version that integrate a program CNC, and you are also of free distribution.
The linux distribution occupies about 50 megas and you are self-executing from a CD-ROM and I believe that although I have not still proven it that also officer from a pencil by heart and a computer that are able to pull up the system from USB. http://www.linuxcnc.org/ there has the link where you will be able to lower S.O. with EMC.
