So as a complete novice in the realms of CNC:
Any hints/tips/suggestions please ??
I made one mod to the box.
As shipped, the unit runs from 12VDC. This isn't so bad as most CNC driver boxes and up with a few different supply voltages in them.
Because I wanted to be able to just plug this into a bench supply and run the drives and controller from 24V, I made a small change to the units power supply.
The switch mode regulator used will happily handle 40V input, but, for reasons unknown to science, the designers elected to put a 16V electrolytic cap on it's input.
I swapped this for a 35V 220uF and now everything runs fine at 24V.