Inspired by nours's multi-part BMW coaster, I designed a version that is a single part with 2 mid-print color changes. There is a 0.6mm height difference between the black and white areas, but a glass still sits stably enough on the coaster. The model is inteded to be printed using a 0.4mm nozzle. The print time is about 1.5 hours on my MINI+.

Recommended print settings (PrusaSlicer):

• 0.2mm layer height
• 3 perimeters
• 100% infill
• skirt height 14 layers to prime nozzle after color change

Filaments used in photos:

• Prusament Galaxy Black PLA
• Prusament Vanilla White PLA
• Polymaker Polyterra Sapphire Blue PLA