Lithophane Flexible Frame

Lithophane frame. Originally designed for 5R size (127x178mm). Can be resized before printing. Depending on your printer accuracy, it may help resizing the back portion to 0.99 relative to the front part as they are very tight to join. As for the lighting solution, I made the back part open to accommodate different solutions (you may design your own suitable lighting). I included my solution as an example - it is based on flat 4W LED (120x120mm) plafon type. I also included a Lithophane print just in case (Japanese doll).