Infinity Cube with balls inside

The special thing about this Fidget-Cube in comparison to similar constructions is:there are balls inside the cubes (please do not ask for the deeper meaning, it's a toy)the cubes can be printed individually, in different colors and different materialsthe cube can be disassembled and repaired, if there were broken hingesThe balls have to be printed first, and then inserted into the cubes during a color change at height of about 16 mm (you do not realy have to change the color, but stop the p