This is for a coffee mill grinder I purchased from Amazon (link below).
There are 2 variations.
Coffee Mill Funnel 1 has a smaller diameter, about 50mm (inner diameter)
Coffee Mill Funnel 2 has a larger diameter, about 62mm (inner diamter)
https://smile.amazon.com/gp/product/B013R3Q7B2/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Print instructions

You can print it in any layer height you like and use any filament you prefer. I personally prefer PLA because I feel it's more "food safe" than other filament.

I have added the gcodes for both funnel variations. These are for PLA at a 1.5mm quality layer height.
The only thing I can't figure out is how to print this without a seam line going up the side. It doesn't bother me so much since I'm the only that'll know it's there. But if I were to give it as a gift to someone I would tinker around with settings more (or use S3D).