Daily Equation #5 - Fermat's Spiral
thingiverse
Day 5 features Fermat's spiral, a variant of the Archimedean spiral (previously seen on Day 3). Unlike its predecessor, Fermat's spiral has a flat region near theta = 0 and decreasing distances between turns. Despite having no known practical application, it's visually striking. The model includes printable equations with units in mm, reduced curve thickness from 5 to 3 mm for overlap avoidance, a = 1.5 (for a 100 mm diameter after 3 turns), and theta range of 0 to 1080.
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