About this 3D model
This is a remix of lynx7878’s awesome design (on Thingiverse). The phone case can be printed with a single nozzle, by printing the maze pattern (green) first and printing the surrounding area and the case (black) after that. These different colors should be exported as separate G-codes. Be sure to use the “Z-hop when retracting” setting in your slicer when you print the second G-code.