Quote Originally Posted by Cobey3289 View Post
Quite agree, it seems the more you research, the more questions that end up needing answers!
Which is exactly why you should never buy anything until you know 100% it's correct for your needs. So don't be afraid to ask.

Regards wiring then it basicly boils down to this for CNC.

Anything which carries signals Ie: Motor wires, Control signal wires, Limit switch, E-stop, require shielded or twisted pair cables. With the Shield going back to Single Earth point " Star point".

Other wires which carry power to components Ie: From PSU to drives, power for control, power fro relays etc can all use normal single core cable often called Tri-rated cable. The cable must be sized according to load it will carry but often people will use one size, that being rated for highest load they'll use. 1.5mm/2 will work for most things.

If using VFD for the spindle then they require special treatment in that shielded cable must be used between VFD and spindle even thou not carrying signals. This is because of the high frequencys they use which can creat lots of electrical interference(noise).