(Reply by Hood - July 09, 2016, 12:40:16 PM)
Mach3 is one programme and it comes standard with Lathe, Mill, Plasma options, you can also make it run many other types of machines such as coil winders, pipe benders, metal folders etc etc etc.
Whether it will work with your plasma will depend on how your original control worked, for example did it use the parallel port or did it have a dedicated card in the pc.
Hood