You just have to print the base and then as many pixels as you need, in each photo it specifies how much of each color you need.
And remember that it's just an example of what you can do with MakerWorld's 8-bit puzzle option.
Greetings and good luck
Der Autor hat dieses Modell remixed.
The pixel is basically the same but I have modified the board to be more robust and have a frame.