Printer: Ender 3 Resolution: 0.20 mm (see below) Speed 60mm/s Material: PLA Nozzle Temp: 205°, 210° on the first layer Bed Temp: 55° Infill: 10% Walls: 3 Top Layers: 4 Bottom Layers: 3 I used variable (smaller) layer heights some of the more curved sections of the headphone hook.