Drink Coaster
thingiverse
Just my Wally world coaster I use at home only this one has a solid bottom. The dimensions are as accurate as my ruler would allow (will get calipers soonish) from the real world object. This has a very fine mesh so you may print it with whatever quality you would like BUT you must furnish the 80-84mm round thin cork to put into the inner 85mm hole for your drinking glass to go on. :) Instructions Print 1:1 for accurate sizing. This can be created with a 3d printer or a 3 axis CNC.
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