Round Belt Generator

This script generates a round belt intended to connect two pulleys. I needed a replacement belt for my son's rock tumbler so printed one with semi-flex filament. One week later and its still going strong, so I thought I'd publish the OpenSCAD script with customizer inputs for good measure.

The code to generate a torus is pretty simple using rotate_extrude(). Just make a circle, offset it along the x-axis and apply rotation. For a torus with major and minor radius of 48 and 1.5, the code would