Hart's Mechanism (exact straight-line)
grabcad
The Hart's inversor, also known as Harts Mechanism, is a unique device offering seamless linear motion devoid of sliding guides. For further insights, visit http://www.math.uoc.gr/~pamfilos/eGallery/problems/Hart_Linkage.html. I leveraged this site to develop my own model. It features two distinct points tracing straight paths.
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