The pentultimate contains 820 total individual pieces.

416 of the custom pieces are cast from 26 masters.

152 of the custom pieces are machined in copies of 15 shapes

568 parts are custom made, counting the 72 tiles.

252 parts come straight from hardware suppliers.

In the end, all parts assemble to make only 32 moving parts.

For more discussion of this build, visit the Twisty Forums:

http://twistypuzzles.com/forum/viewtopic.php?f=9&t=9195