Modular Lithophane light box

I create a modular lightbox for 10x7.5cm lithophanes. With this model you can create any lithophane collage. To hold the lithophanes I made 2 possible mechanisms:With magnets (5x2mm). It makes possible change pictures or picture position.Without magnets, to glue. (Also tolerence should be enough to not use glue, but not as effective as magnets)There are two different models.Row:You will need x2 row_lateralAs many row_center as you wish. There is also an option with a hole in case you want to con