Testing 3D Printed Dice Fairness - New Hollow Dice

Using the information gathered last time I modified a dice I made in tinkercad way back when and made a die that I figured would be sufficiently fair. Hollow like before this die has totally sharp edges. But because I can't leave well enough alone I made another that had flat corners, or "truncated" to use a geometric term.

After 30 rolls the chi-squared number for the totally square one was 14 placing it among the best of the last bunch. The chi-squared number for the truncated one was 30 placing it among the worst. Fine, I've learned my lesson. Don't mess with what works and go with the data.

You can download the square hollow dice on thingiverse.