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    The 3D-Printed Curta Calculator

    Adam Savage’s Tested

    2 HN recommenders · recommended in 3 months, 2017–2025

    YouTube

    8:36 · 2M views · Aug 31, 2017

    Adam Savage shows off his collection of analog calculators, ending with a 3D-printed, scaled reproduction of the Curta mechanical calculator built by Marcus Wu. The video examines the replica and the engineering behind it.

    Linked whenever the Curta or mechanical calculators come up, as a look at a working 3D-printed version.

    Engineering, Transport & Making3D printing, CNC & maker projectsMechanical & precision engineeringHistory of computing
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    3 comments from Hacker News

    1. @beeforporkNov 2025· in “Designing a Mechanical Calculator”

      Maybe have a look at the Curta for inspiration of a mechanical calculator. There's a 3D printable version of it. this video [LINK]

      RecommendsView on HN
    2. @function_sevenOct 2018· in “The Slide Rule”

      I'm sure you've seen this already, but if not: this video A 3:1 scale replica of the Curta, 3D printed.

      RecommendsView on HN
    3. @jshprentzDec 2017· in “ReCurta: Our goal is to build the first Curta calculator since 1972”

      Marcus Wu designed, 3D-printed, and assembled a 3x scale working Curta calculator. He shared his models and progress on Thingverse at [LINK] His YouTube channel includes many videos of the development, assembly, and operation of his calculator. Watch a short demonstration at [LINK] Adam Savage commissioned Marcus to build a copy. Adam unboxes his 3D-printed Curta on YouTube at this video

      CitesView on HN