is your machine a basic cnc or do you have a tool changer too?
if you have a basic machine without a tool changer you can easily convert it to run on mach3
doing the conversion will cost you less in the end than having a tech come by and fix it everytime it goes down you will need a
pc with a parallel port -nothing fancy-
a breakout board $45.00 to $105.00
driver for the motors $250.00 to 350.00
you already have the gantry and motors all you need is the brains of the machine to make it run, if you want to get this converted and need help let me know i will be more than glad to help you