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Thread: Designing a biased die (non-regular icosahedron)

  1. #1
    Associate Engineer
    Join Date
    Mar 2016

    Designing a biased die (non-regular icosahedron)

    Not an engineer. I may be asking in the wrong place or phrasing the question suboptimally, but here is my best shot:

    How to go about determining the correct relative dimensions of a non-regular icosahedron that, should it be used to cast a physical die, the probability distribution would be:

    If it helps to have a fixed dimension to work with, assume a 20mm vertex-to-vertex diameter.
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