507 Mechanical Movements: Classic Engineering Reference Now Online

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A website at 507movements.com catalogs 507 classic mechanical movements in an interactive digital format. The resource is based on a well-known 19th-century reference book documenting mechanical linkages, gears, cams, and other mechanisms. Each movement is presented with animated illustrations to help users visualize how the mechanisms function. The site serves as a practical reference for engineers, designers, inventors, and students interested in mechanical principles. It was recently shared on Hacker News, where it attracted reader attention as a useful engineering resource.

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