OpenSCAD Nautilus Shell

thingiverse

This custom nautilus-style shell is my creation for Project Shellter, hoping it will be suitable for my brother's hermit crab. Although a similar nautilus shell design exists on Thingiverse, this particular model is entirely crafted using OpenSCAD, employing polyhedrons and the Fibonacci spiral formula to achieve its shape. To ensure ample space for the crab's abdomen, I designed the first chamber generously. For added fun, I have included images of my (mostly unnecessary) mathematical notes. A word of caution: While this shell design is parametric, it only renders successfully with OpenSCAD versions greater than 2011.06. Additionally, be prepared for some challenging overhangs during the printing process; I recommend a slow print speed accompanied by continuous fan usage (except for the first layer) to ensure a successful outcome.