Finally, here is the 2nd Version of this Grinder !
First version : https://www.thingiverse.com/thing:978270
To build it, you'll need 3 screws M3 15mm and one bolt (handle).
The biggest file (box) include a 30mm bridge. Otherwise, all the pieces are simple to print, without the need to add support.
Printed with a prusa i3, PLA 185°C, 45 mm/s.