Print in something dishwasher and food-safe. Mine is in a high-temperature PLA that is alas no longer manufactured. A few notes: You might need to resize the hole for your dishwasher -- that's the line "translate([0,0,-10])cylinder(r=2.5, h=65, center=true);". You may also need to redo the length for a different re-usable filter cup (this version works for a couple different brands.) The openscad code is a model of how not to write, but it works. (The rounded-corner library is ancient and could be replaced with something newer -- a copy is currently still available at .