What is a Slip Ring?
A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure.
It allows your Dome or Holoprojectors to rotate 360° without ripping the wires of 😉
You’ll need at last one bigger Slip Ring (i used one with 24 wires) for the Dome, but i reccomend 3 smaller ones also (3-6 wires) for your Holo Projectors if the’re moving and blinking.

Used for the Dome

Used for Holoprojectors