I made this box to store my Apple Watch Cases. First I had a 2x2.5 gridfinity bin to put my cases but then I came up with the idea of making this box to make storing my cases more tidy. It can hold up to 12 cases. 

I printed it in PLA, 0.2mm layer height, 15% infill.

Have fun! Please let me know if you like it. 

The gridfinity box can be found here: https://www.printables.com/model/640797-gridfinity-ultra-light-bins-plain-half-grid-editio

As I said. I used the 2x2.5 version and then the inlay fits perfect.