A napkin ring with a Mobius strip design and 3D printed with carbon and bronze colour filament. Of course, you can scale it up a little bit more and fit towels for a dinner.
Supports or rafts: This part does not need supports or rafts.
Perimeters: Use of three lines perimeter.
Layer Height: Low to medium layer height. A low layer height makes smoother surfaces.
Printing speed: Medium printing speed and especially low printing speed for the last layers.
Travel speed: Low to medium travel speed because there is a chance the extuder nozzle to break or unstack the part.
Low-cost PLA with unique colors: