You can download the files on:

Thingiverse: https://www.thingiverse.com/thing:6615905

Printables: https://www.printables.com/model/874747

FreeCAD Design Files: https://github.com/the16bitgamer/16BitVirtualStudiosDesigns/tree/main/GLoA E-Reader Cases/6 inch

The files are for all the 3D Printable components which makes up the e-reader case. What’s not included in the files is the cutting profiles for the case that holds it. But you can just use duck tape or some flexible adhesive and it’ll work. Along with the screws, nuts and magnets required.