Hello, i designed a Big Box for Lithophane Pictures. Dimensions for the Lithophanes is 200x200mm ( think about the 1-2 mm tolerance for a good fit i would suggest 198x198 mm Lithophanes with a Border around of 10 mm and 2 mm Thickness to fit in the Slot ).

I used a E27 Lampholder from Amazon : [https://amzn.eu/d/8zjJhFp](https://amzn.eu/d/8zjJhFp) to fit a 230 V philips Hue.

And i would suggest to Glue the Poles to the Base Part and just put the Lid on Top to have access to the Lamp in the Case of damage.

If you scale it down to Print on smaller printers be aware of the Shrinking of the Slots and measure them before printing any Lithophanes.