{
  "source": "analytic",
  "method": "tube r5 along line 20 + R5 quarter bend + line 20: V = pi r^2 L, A = 2 pi r L + 2 pi r^2 (Pappus, valid while bend radius >= r; here equal so the inner side pinches to a line); bend centroid at (R^2 + r^2/4)/R * sinc(pi/4) along the bisector",
  "body_count": 1,
  "volume_mm3": 3758.4429286578784,
  "area_mm2": 1660.4568041426407,
  "center_of_mass": [
    6.436662063480004,
    0.0,
    18.563337936519996
  ],
  "bbox": {
    "min": [
      -5.0,
      -5.0,
      0.0
    ],
    "max": [
      25.0,
      5.0,
      30.0
    ]
  },
  "faces": 5
}