Puzzle remix by the respected Marcell Mágori who posted it on www.thingiverse.com. Since I did not want to look for the core from the desired 2x2x2 cube, I drew this puzzle already with the core. The core of this puzzle can be printed out as a whole, and it is also divided into two parts that need to be glued together. You can center it with a 1.75mm filament by inserting it into four holes. For assembly you will need 6 screws M3x16 or M3x20.
The author hasn't provided the model origin yet.