The file '3x3x3 Rubiks Cube 3D Printer Model' is (stp,stl) file type, size is 2.5MB.
You will need to print :
core x1center x6edge x12corner x8
you will need to buy : 6 M3-Skrews (or 1/8 inch), 6 springs 10 x 4.5 mm
