nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqyxxu3fkku2jfpuuhesaexzuhh6z5al0rjjs292kcvcryxc35v02q9jsaev (nprofile…saev) nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqjzjhxmxecmau4phynps3mndxwds7z23qh3a2w5r0ry8p7hevdc5q7cuetd (nprofile…uetd) nprofile1qy2hwumn8ghj7un9d3shjtnddaehgu3wwp6kyqpqs9sewrykm2z4gm8y4jgqcx9ws0jgqhfmx02dsc9ndudt9qvl3nds4yqqx9 (nprofile…qqx9) Very cool stuff, and it's the first method (with a physical justification) I know of for making dice with differently shaped faces and probabilities.
However, they don't pay attention to momentum, friction, or bouncing, and it's still true that changes in the physical setup like friction etc. can change the probability distribution when you don't have symmetry.
They don't claim that they can perfectly simulate 3d6 with a dragon - but now the question is how much those other physical parameters matter. (If you want to roll dragons then maybe it doesn't matter too much to you how accurate the probabilities are?)