Print at 100% infill with a layer height of 0.08mm with a base layer of 0.16mm
Start with Black
At layer #4 (0.4mm) swap to Red
At layer #6 (0.56mm) swap to orange
At layer #9 (0.8mm) swap to Yellow
At layer #11 (0.96mm) White
The author marked this model as their own original creation.