video Timemore diy motorized 3d printed automated coffee grinder - YouTube
Autodesk Fusion 360 assembly (f3z) included.
Stl files and 3mf files included. Or you can generate it from Fusion 360.
DC motor is available also on conrad web
11.04.2022 - added pdf with mechanical instructions and electronis scheme. Added 3mf and stl
The author hasn't provided the model origin yet.