CNC ELECTRONICS Power Supply

[EddyCurrent]

This is also a popular site; http://cnc4you.co.uk/
Yes you will need 4 drivers if you use 4 motors.
It's best to make your own power supply, some info here; http://www.mycncuk.com/threads/6624-...9938#post49938
but there's loads more if you search this forum, you need to ensure the voltage is about 70v minimum to get the best from that setup.
You want a 'linear supply' not a 'regulated supply' because the linear ones can absorb excess back emf from the motors during fast stopping for example.
Toroidal transformers are got here; http://www.airlinktransformers.com/c...tandard_range/
I got my capacitors here; http://www.rapidonline.com/FFSearchR...rSearchScope=1
they also have the bridge rectifiers.