Hi, I was wondering this, too.
Some experience grounding problems, but the cutter is grounded through the plug connection with wall socket. I assume inside the machines the "ground" cable is connected to machine's frame? That would make that the machine is grounded.
But as I understand correctly, the static issues is that the stand is not grounded? So a small piece of wire from stand's frame (aluminium) to machine's frame (steel bottomplate) would get rit of any static charge built up?
Does it matter that the rolls that the vinyl roll is placed onto are made of plastic?