How I built a Mechanical Calculator
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How and why I built a mechanical calculator. Basing it on the Arithmometer, I built this calculator by hand out of mostly plywood. I suspect it is the first ...

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How and why I built a mechanical calculator. Basing it on the Arithmometer, I built this calculator by hand out of mostly plywood. I suspect it is the first of its kind built in over 100 years. Working on and off, it took me 8 years.

  • tate
    5·
    4 months ago

    Upvote for abacapodes!

    I’d upvote for content too, but I only get one. ;-)