Just a very simple box for my Lithopanes I print.
Was designed in Tinkercad.
You can edit it if you like here: https://www.tinkercad.com/things/bXOJIlYG3gK
I am thinking of adding a piece of tin foil on the back cover to evenly reflect the light on the inside. Not that there seems to be an issue just so I do not get a more darker contrast in the center.
PS…. Am sharing as is and you can use it how you please even for commercial use.
The author hasn't provided the model origin yet.