Quote Originally Posted by PaisleyPCdoctor View Post
It's just the photo, it's not mounted to the case, it's actually suspended in mid air. With the stiffness of the wiring looms, it's not going anywhere.
I never realised the ferrite ring was still mounted in that bit of the photo. I was on about the silver box mounted to the side of the enclosure at the bottom of the photo. Technically any power components shouldn't be directly mounted to the case, they should be mounted on a sub-plate.

As there's a ferrite ring, I wouldn't bother shielding any of the power cabling in the case. Ferrites are very effective at stopping the noise that can potentially cause problems. I would however use good quality shielded and twisted pair wiring for the VFD speed control wiring, as noise on that can cause spindle speed instability. The control wiring less so. It will all be 12 or 24V, and it would take a lot of interference to cause any problems there.