Edit (V2 Update): I've just uploaded Version 2 of the print profiles! The core sizes and dimensions remain exactly the same, but I've finely adjusted the roundness of the sensor bumps and the inner/outer edges of the ring. This makes the geometry even more precise and gives you a much more accurate feel of how the real ring will sit comfortably on your finger!

Planning to buy the Oura Ring 5? Don't guess your size! I've designed a highly accurate Sizing Kit (Sizes 6-13) featuring the actual internal sensor bumps for a true-to-life fit. Standard flat rings won't give you the correct feel. Print this kit, wear your size for 24-72 hours, and order with confidence! The print profile is heavily optimized for 0.08mm layers at 50mm/s to guarantee an ultra-smooth, comfortable finish for 24/7 testing.

Modular Glow Vase System is now live on MakerWorld - a revolutionary dual-component parametric design featuring an industrial-strength PETG Core (80mm diameter x 180mm height, 5mm walls, 10mm base) that's fully waterproof, paired with thin translucent Shells offering infinite designs via the Parametric OpenSCAD generator. Print one Core once, generate endless aesthetic variations of the Shell matching any floral arrangement or decor theme!