There's already a mess of infinity cubes out there but I needed an excuse to mess about with print in place hinges and bridging. Hence my humble offering.
I totally borrowed the design from mjdargen over on instructables. The tutorial is pretty easy, though I didn't follow it too closely. Unlike the solid model, supports are required. The floating hinges on each end (see the attached image) need to be held up to print - unless you want to summon the flying spaghetti monster, that is…
Caution: When I sliced this model with PrusaSlicer half of the bridges were done in the wrong direction and a little messy as a result. SuperSlicer doesn't have this problem.
I've included both the Fusion360 file and a STEP version in case you want to modify things.
All are designed with a 0.2mm layer height for clearance. If you want to change this, you have to modify the clearance parameter in the CAD file.
The author hasn't provided the model origin yet.