I was strongly inspired by the work of @sacrilegor, I even wanted to use its upper insert of the Gridfinity box, but I had a problem with the central hinge of the Dremel box. So I had to remodel the top insert in order to gain the few millimeters that I lacked and which would allow me to close the box. I also wanted to store as many accéssoires as possible and use the entire surface of the box.
Thanks again to @sacrilegor for his work and sharing.
13-07-2025 : Adding STL files
The author marked this model as their own original creation.