About this 3D model

This one says it takes more than 4 colors but you actually only need 4. When you assign your colors to the AMS, you'll see some repeat colors. Just select the same slot for that color. For example, if your red is loaded in slot one. Assign both reds to that one slot. You just need Green/Black/Red/White in the AMS Powered by Make My Sign from MakerWorld(makerworld.com/makerlab/MakeMySign)