{
  "source": "analytic",
  "method": "extrusion along x (100) of the YZ section: base y 5..60 x t; 90 deg bend annulus R 2.5..5 about (y 5, z 5); flange y 0..2.5, z 5..20. Setback (R+t)tan45 = 5 (inside bend position, outer-face height datum: outer face of flange reaches z = 20); V = L*A_sec, A = 2 A_sec + L P_sec",
  "body_count": 1,
  "volume_mm3": 18972.621556370217,
  "area_mm2": 16057.549676223574,
  "center_of_mass": [
    50.0,
    23.996671893539865,
    3.572504424184866
  ],
  "bbox": {
    "min": [
      0.0,
      0.0,
      0.0
    ],
    "max": [
      100.0,
      60.0,
      20.0
    ]
  },
  "note": "trim/setback and height datum are SolidCraft's documented edge-flange conventions (sheet.rs add_flanges)"
}