A basic curved Lithopane box, was made for an existing Lithopane I previously printed for a work friend.
Currently printing so will add photos when doen printing.
You may use and or edit the design as you please here is a link to the tinkercad file https://www.tinkercad.com/things/8QIn3XFertX-curve-litho-box/edit?sharecode=w9ZcrZt-DDiwWxHss5206XtMV3aEQkHBivHQsXP_wMc
The author hasn't provided the model origin yet.