{
  "source": "analytic",
  "method": "box 40x30x20 with the 4 top edges chamfered 2: lower box 40x30x18 + top slab with section (36+2u)x(26+2u) at depth u (V, moment by exact polynomial integration); A = bottom + sides(h=18) + top 36x26 + 4 trapezoid bevels of slant 2 sqrt2",
  "body_count": 1,
  "volume_mm3": 23730.666666666668,
  "area_mm2": 5029.352380466497,
  "center_of_mass": [
    19.999999999999996,
    15.0,
    9.894145409596582
  ],
  "bbox": {
    "min": [
      0.0,
      0.0,
      0.0
    ],
    "max": [
      40.0,
      30.0,
      20.0
    ]
  },
  "faces": 10
}