UPDATED 1/17/24
Update to model to reduce material usage for the back and allow higher scaling on larger multicolor machines without making the walls uselessly large. The uploaded 3mf of this version is scaled to 110% to max out the Bambu build plate, while using less material and achieving a faster print time.
Also included two different backs this time, one with a provision to hang on the wall and one without for those that sit on a desk but the back is visible.
Original example printed with Bambu basic PLA black, white, red and gold (not silk).
As always be sure to heat up your hotend to clean any old filament that is stuck to the nozzle before sending the print. This will help keep color wisps to a minimum.
The back has a negative cube included in the objects that you can move and scale as you need for your LED installation.