nautilus windmill - customizable
thingiverse
April 23: Update - We're now also supporting Archimedes, and it's better for experimenting to have a customizable version. Having too many windings can increase drag, so I introduced a new aspect using a logarithmic spiral instead of the traditional Archimedes spiral found here: https://www.youtube.com/watch?v=iHBUi1Pv7AM Key points: CGAL rendering isn't very fast. Cut off the foot after printing for improved aerodynamics. Please let me know your results.
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