This is a fully 3D-printable twisty puzzle based on standart O2 cube based on original O2 cube from QiYi. The model is engineered to be assembled completely without screws. No MMU/AMS is required for printing. 

Performance Notes:

• Turning: The puzzle turns smoothly.

   

Assembly & Post-Processing Tips:

• Cleaning & Sanding: After removing supports, make sure to lightly sand any surfaces where supports were attached to achieve flush joints.
• Assembly: first assembly the circle and then place it inside the half cube. Than you can add last piece (second half cube).
• Tiling: Place tiles after you assmebly the skeleton of the puzzle.