Fits 6 k-cups in each section for the main part (18 total), and 11 in each (33 total) if you add the additional top part. The “attachment piece” can be glued right onto the main and top part so it doesn't topple. It's not super fancy since I am bad with CAD lol

This can be printed without supports at 0.32 layer height, I did notice a ton of stringing on mine but a lighter took care of that.