This multifunction cube is easy to print and easy to use. The three parts are aligned and fixed by using four 25mm (or more) countersunk M3 bolts.
For the lithphane version, you mount a light source in the middle of the cube.
For the other versions you need to cut four pieces of 2mm glass128x98mm fot the side panels. The bottom panel is 98x98 mm and the top panel is 93x93mm.
For the infinity application, you need pieces of self adhesive reflective film, cut to the dimensions of the glass panels.
The infinity version has two RGB led strips. Where to apply them is clearly illustrated in: