Vergo's 3x3x3 Cube

Higher order version of Eric Vergo's original cube: http://twistypuzzles.com/cgi-bin/puzzle.cgi?pkey=2079

12 edges, 8 corners and 6 centers (with their caps) must be printed. For the core you can use any 3x3x3 core. You will also need 6 screws and springs.