VFD inside or outside the control box?

[Kitwn]

Muzzer,
Aren't you shutting one of the biggest sources of electrical noise inside the metal shielding meant to keep it out of the other electronics? However I can see the point of keeping all the noise from the stepper drivers and VFD contained and away from the controlling computer.

Paul,
Perhaps this is an opportunity to broaden the discussion to noise in general, it's sources, consequences and how to deal with it.

My own controller is an old PC case with the PSUs and stepper drivers in it with the parallel breakout board in it's own metal box inside there as well (I use a cheap Chinese breakout and LinuxCNC). I left the PC PSU in there to provide 5v for the breakout and 12v for the fans.1uF capacitors are connected across all the inputs on the breakout board. Cables to/from the steppers, spindle and limit switches are screened with the screens only connected to ground at the controller or VFD end. It's been working OK for now.
Your mains supply can spread noise and there are recommendations to feed the VFD from a socket as far away from everything else as possible. My entire machine, computer, dust extractor and all, is fed by one dual socket and still works so don't spend any money on getting new sockets installed at the other end of your shed unless you have to.

Kit