Collaborative projects and original ideas

"Fairest Dice in the World" (Also fastest!)
Barycenter in the real center of dice,
with 99.99999999% precision!!

How about rolling a dice with its barycenter truly in the center?
Let us divide this cube into 6 four-sided pyramid, and make adjustments to cope with different numbers on each side, then machine accordingly so that barycenter becomes even. When 6 of this is combined, theoretically, the distance from the barycenter to each surface matches 99.99999999%!
It is called "Fastest Dice" because the same material is also machined at Iriso Seimitsu for F1 machine engines.