include <arc_cylinder.scad>;

module cableSleeve(cableDiameter, length) {
    innerRadius = (cableDiameter + 1) / 2; // give 1mm clearence for the cable

    arcCylinder(
      height = length,
      outerRadius = innerRadius + 2,
      innerRadius = innerRadius,
      degrees = 360 - (2 * asin(cableDiameter / (cableDiameter + 2))));
}