Prime Link: 7_2_5
thingiverse
The prime link 7_2_5 model features a constant-radius tube, tightened to show clear crossings. A thinner version helps visibility while requiring less support material. RidgeRunner software creates this knot and is available for free at http://www.jasoncantarella.com/wordpress/software/ridgerunner/. The knot's shape depends on the function being minimized, like ropelength data found at http://www.jasoncantarella.com/wordpress/papers/. For more details about this prime link, visit its Knot Atlas page (http://katlas.math.toronto.edu/wiki/L7a2). To see the knot tightening, watch the movie at http://www.jasoncantarella.com/movs.
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