Electronics for New Machine + Chinese Spindle + VFD

[JAZZCNC]

I am after simple and safe!
I understand how to wire the steppers. Just not 100% on the e-stop, additional fuses you mentioned or grounding.

Ok but you will need a few more bits.! . . . Nothing expensive but important to have. Momentery Reset Button and Some Relays. Plus if you want a best noise immunity then a 24V PSU.
I also suggest you buy a 5V PSU and power the Uc300 and KK01 from this and don't rely on USB to provide power. This will give you a much more stable system.

The VFD doesn't actually need to be pluged into another plug either if you don't want. I think your probably doing this because of something I said before but miss understood what I meant.?
When I said ideally Run the VFD on It's own Mains Line. I ment on separate Ring Main line not Different Plug line. All your sockets in the room and possibly house will run off the same Ring Main line so doesn't really matter if in same wall socket or across the room in another socket any noise will transfer to/from the VFD to other devices if bad.
Often this isn't possible or practical and why I said "Ideally" so in your case if you like you can just run from one plug socket. Then we Fuse them separate in the case.

This is what others are trying to tell you in that by the time you have put in these extra Fuses, relays etc which are minimum and needed for a truely safe system then you probably won't have enough room.!!
Also Don't let anyone tell you that Software driven E-stop system is safe and you don't need relays etc because it isn't and they are idiots to run without it for what little it costs to do right.