{
  "source": "analytic",
  "method": "tray: base 90 x 50 x 2.5 (each edge trimmed by the setback 5); four 90 deg bends R 2.5..5 along the trimmed edges (90, 50, 90, 50 long); four walls 2.5 thick, z 5..25, each running on past its bend by ext = (R+t) - (t + gap/sqrt2) = 0.732233047 at both ends; open corners. A = sum of prisms - 2 x joints",
  "body_count": 1,
  "volume_mm3": 29666.23357665006,
  "area_mm2": 24980.085907711007,
  "center_of_mass": [
    49.99999999999999,
    29.999999999999996,
    8.051722040173603
  ],
  "bbox": {
    "min": [
      0.0,
      0.0,
      0.0
    ],
    "max": [
      100.0,
      60.0,
      25.0
    ]
  },
  "faces": 46,
  "note": "corner treatment is SolidCraft's convention (sheet.rs close_corners: panels extended until their inner corners are the rule gap = t apart; no corner fill, open corner relief below the walls)"
}