Versatile Light Box

For a while I've wanted to create a universal light box frame which allows makers to insert their own picture and artwork designs. The idea is to have a generic box with a slot into which printed designs can be inserted. I also wanted to take advantage of close to the maximum size which can be printed on my Bambu Labs P1P. I also realised that there are different thicknesses of picture which may need to be inserted. For example the usual light box picture may be 1mm and a lithophane or HueForge design could be 4mm in thickness (or perhaps more). With this in mind, I've designed the Versatile Light Box with a way to attach different sized tops that will provide a slot of different sizes to accommodate designs of different thicknesses. Included in this model are the following:A universal box, which measures 225mm x 225mm x 40mmVarious tops designed to fit the universal box, providing slots with thickness of 2mm, 3mm and 4mm.A set of 7 pins to join the top to the universal bottom.The univ