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Thread: DIY Pendulum Harmonograph instruction PDF

  1. #1
    Join Date
    Sep 2014
    Colorado USA

    Default DIY Pendulum Harmonograph instruction

    Greg, and any others interested, in case you didn't see this PDF I posted in another PLF post. I made one back in 1977 and was impressed with its capabilities.

    Make A Harmonograph.pdf
    Last edited by lasermaster1977; 06-13-2024 at 10:52.
    Everything depends on everything else

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