Assembly video https://youtu.be/XcROBIHA7ok3D model of the lithophane in STL format + UltiMaker Cura project + body made on a 3D printer. Dimensions: 130 mm x 113 mm x 69 mm. Polar bear with cubs on an ice floe, aurora borealis - a very beautiful lithophane. The PDF file contains a list of components (names are clickable) for assembly and a schematic diagram. When using a 18650 battery with a capacity of 3 Ah, the lithophane works for more than 6 hours.You can use PLA or PETG.Maximum image thickness 3.6 mm minimum 0.8 mm. Printed with a 0.4 mm nozzle, white PLA plastic