This is a remix of a two-color sign by 3dxia. I wanted to be able to print it in three colors as shown, but with a one-color printer, I can only do filament swaps. So I cut an area out of the middle and shrunk it just enough to fit in the other part.

The original is here: https://www.thingiverse.com/thing:4396459
Since I found it on thangs.com, and they stole the design from 3dxia without crediting it, this isn't shown as a remix of the actual original design.

Creality

Ender 3 Pro

No

No

.15mm

15%

Add a filament swap after 1.5mm in the larger (whiteblack) file. Print the yellow part, remove it from the printer, then print the larger part, and when it's time for the filament swap, drop the yellow piece into the hole. Hopefully the pictures will make it clear.

I've also included the original "Sign_Board.stl" here if you just want to do a single filament swap and print this in two colors.