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Almanac of Family Fun and Pastimes and Pursuits (1983)

This is a table-top version of a Lissajous Figure Drawing Machine with the typical "Mother Earth" treatment.  Note the clever use of miscellaneous parts.

Critique:  The pendulum weights aren't really adjustable which pretty much limits the ratios you can achieve. (Note that a pendulum's period is determined by the length of the pendulum rather than the weight of the bob!)

Click on a page to view full size:



Two-page Spread

Article title; "Sketch wth a Harmonograph" by Lawrence A. Jackson.