This is the second in a series of customizable bracelet designs. Small (50), Medium (55), and Large (60) demo files are included here, but why not customize it yourself? Press "Open in Customizer" to set your own diameter, height, amplitude, and frequency. The shape of the bracelet is based on a trigonometric function. For more information on the mathematics, OpenSCAD code, and printing of this model, see the link below. MakerHome, Day 328: http://makerhome.blogspot.com/2014/08/day-328-sun-customizable-function.html