Solar Ball Mill

A pandemic called COVID-19 deprived me of my job, but gave me free time that I used to study extramural 3D design.
This is my first project, so I’m asking for understanding of people who are familiar with this topic :)
To the point ... this is a small ball mill adapted to a jar with a diameter of 6cm (coffee 200g tchibo). Powered by two 110x60 6V solar panels
https://www.joom.com/pl/products/1522392070733804445-46-1-39131-2935887495
connected to the TP4056 system
https://www.joom.com/pl/products/1510568290873210517-106-1-26193-4013935756
and 16340 batteries
https://www.joom.com/pl/products/5d56221928fc71010199b0f2
6V motor driving the jar
https://www.joom.com/pl/products/5c70b59128fc710101fdc0f5
You will also need 6 M3x10mm screws and 2 M6x30mm screws and 10 pieces of M3 nuts.
I used glass balls for grinding
https://www.joom.com/pl/products/1508924633570321329-179-1-26193-995176097

If you find this useful, please provide what you think is worth my payment. https://www.p