Tag Archive: geometric chuck

Ingenious Machines part 3: some Interesting Discoveries

I have recently received some fascinating communications in response to my previous “Iron Genie” and “Ingenious Drawing Machines” posts, which the authors have very kindly given me permission to share in the current… Continue reading

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Ingenious machines for drawing curves: The Archives

A frequent comment made by viewers of the Iron Genie harmonograph in action, is that it reminds them of the Spirograph. Most of us are familiar with this childhood toy, which consists of… Continue reading

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