Allows mounting Umbilical toolhead PCB on the back of your toolhead and strapping wiring with reusable ties.
The advantage being that you don't need to cut and pull and cut and pull zip ties whenever you do maintaince or replacement of your toolhead. Additionally it hides wiring way behind extruder motor, making it less eye soaring.
IMPORTANT: for spacers between motor and plate please use either spacer from remixed models or from official Voron 0 STLs: https://github.com/VoronDesign/Voron-0/blob/Voron0.2/STLs/Toolheads/Mini_Stealthburner/Strain_Relief_Spacer_x2.stl
The author remixed this model.