filament spools screw box

Are you tired of throwing away empty filament spools? This project allows you to re-purpose them instead of recycling. It is designed for the Inland filament spools from Micro Center.
Using M4 screw assembly.
The spool in picture is : inner diameters is 90mm. out diameters is 200mm, inside height is 57mm, I have a different height of the model, you can try with different height, my design is suitable for most of the spool, you can print a few to tests first. use of length of 45mm to 65mm m4 screw installation, 6 m4 screw and 6 nut, It is simple and uncompiped , by your way