Hi,

There is a 5v and a 24v transformer which I think are DC (I did take pictures but have left my phone in the workshop), I assume they were fitted when the machine was converted to Mach3 they are certainly not part of the original controller.

My spindle is controlled by a plugin and serial port which I am happy to leave as is.

I would prefer to purchase a PSU as opposed to building one unless there is an advantage going the toroidal route. Regarding your comment on the 300Va being sufficient but no room for expansion could I fit bigger motors if I needed to or would I need to if the new set up get the most out f the current ones?

As to using what I can I was assuming that with a new motion controller, PSU and drives apart from the 5 & 24V transformers everything else would be redundant bar the mains on/off switch.