Im thinking about converting a fairly big mill that ive got with lead screws (i would say that the xyz axis are fairley easy to move). It has quite a lot of backlash at the moment so am going to see if i can reduse it but is good for its age (i realise it wont be super accurate). I have used hass mills before but know very little about converting mills. I have been looking at this system 4 kit http://www.diycnc.co.uk/html/cnc_systems.html and woundered if it would have enough power with 3nm steppers geared down 2:1. so i just want to know everything i need to know and if its worth doing.

Thanks