I may be slowly convincing him to replace some of the electronic components at some point. however I'm not to sure what is actually needed as I didn't do much on my own cnc. From what I gather the stuff that is in there wont run on mach 3 at the moment and will only work with nc studio that it came with, would that be correct?

I found this video on you tube but not sure exactly how correct it is?

https://www.youtube.com/watch?v=aW0E-0B5SB4

What would be the best plan of action to try and make the machine a little more reliable without spending too much and barring in mind we are in Australia so getting stuff here is a lot harder/more expensive than it is in the uk.

many thanks