The file 'Root Spiral Coaster 3D Printer Model' is (stl) file type, size is 190.6KB.
The square root spiral, or "spiral of Theodorus" makes a good coaster!
The square roots of the integers from 1 to 54 make up this pattern. Of course you can keep counting higher but this is enough to set a drink on.
Nothing fancy regarding print settings. 0.2 layer height. 20% infill. Hilbert Curve looks nice on top.
root_spiral_coaster.stl | 1.2MB |