Free
It's free to download
Videos
Images
Documentation
Technical
I printed this in Colorfabb Ngen, I used 0.26 layers and 3 shells and 20% infill.
I would recommend 0.2 layers, as I got some minor stringing in the rounded edges on the outside.
Sand the joints until pressfit, with 3 shells its pretty airtight so coffee should be fresh atleast for a few days.
Free