This is yet another infinity cube. My goal was to design one that could be printed as a single piece. If you put tiny supports inside it around the hinges, and supports on the bottom, it works. The tiny internal supports will break off when the print is complete and you start bending it.

Alternatively, you can print 4 of each type of cube (type 1 and 2) and a bunch of hinges to put them together. A little superglue to hold each hinge together and you're good to go. If you import the pieces individually, make sure that the hinges are imported with the units in millimeters, otherwise they will be way too big for the cubes.