Celtic Knot Coaster

thingiverse

I needed a coaster (90mm x 90mm) that could collect plenty of condensation, so I designed one with a three-dimensional Celtic knot pattern. v1 -- I reduced the height of the knot to create a stable surface for the glass, despite having gnarly internal overhangs, it printed out fine. v2 -- I made less modifications to the top; it still seemed stable enough, but I'm sticking with v1.