LithoBox with roaring dragon!

Bambu recommends a size of 144*108 for lithophanes to fit in their backlight box. I used this size and created a fitting box with lid. You can add LEDs inside the box - there's a hole for cable.

Print lithophane in mentioned size and glue it in the frame.

Note: The design is to fit parts tight together so they don't fall apart. If your printer isn't that accurate you eventually have to clean some edges to make it fit for you.

Nice instructions for Lithos (even in color but u can ignore that part if u don't want to do it):

https://itslitho.com/lithophane-guides/how-to-make-a-color-lithophane/