cults3d
This is a fully printable ball mill that does not require any supports. It was designed to use a 170 RPM motor and the mount fits this motor (https://www.amazon.com/dp/B00NQ8HXNA/).
In order to ensure a tight, dust proof seal, make sure to add an ring of silicone to the inside of the cap, to glue the hex shaft onto the drum and to glue the motor shaft to the drum.
It can be used to grind virtually any material into a fine powder.
Here is a video of it in action:
https://www.youtube.com/watch?v=SLQzLVd98BQ&feature=youtu.be
Direct link to the original creator's page
Click the "View on cults3d" button above to visit the original model page on cults3d. You can download the STL file directly from the creator's page.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
This is a premium model priced at on cults3d. Premium models often include higher detail, multiple parts, and print-tested files.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original cults3d page to see if modifications are permitted by the creator.