New CNC Mill on the horizon

[JAZZCNC]

Also... what sort / size cable do people generally use for wiring coming from the psu to the stepper drives and wiring the power elements of the estop circuits bearing in mind I am using the CSMIO from cslabs so its all 24v in relation to the motion controller except the mains in

Just trying to get an idea of whats best to order in bulk

You want Tri rated for general single wire runs for power to steppers, relays etc like this. http://www.csecables.com/acatalog/Tr...l#aTri_2d0_2d5

For signal cables you want Shielded CY cables or like Clive says you can use twisted pair Cat5 but only use inside control panel not running to limits etc on machine as it's not really flexible enough. I tend to use Cat5 in box as theres less wires and one cable will provide for 2 drives.
http://www.csecables.com/acatalog/CY-Cable.html

Bear in mind the Csmio doesn't provide voltage from the I/O you have to feed it 24V +/- to each I/O so you'll need plenty of connections on the 24V rail or do some jumpering. Suggest you get some Din rail terminals with Jumper bars to create one Multi connector.