{ "source": "analytic", "method": "plate 120x60x5 minus 7 through holes d6 at arc lengths k*17.875031 along the arc through (100,15),(60,45),(20,15) (centre (60,10/3), R 125/3), translated copies", "body_count": 1, "volume_mm3": 35010.3983141192, "area_mm2": 16463.89378290154, "center_of_mass": [ 60.00000001136545, 29.96522867057171, 2.5 ], "bbox": { "min": [ 0.0, 0.0, 0.0 ], "max": [ 120.0, 60.0, 5.0 ] }, "faces": 13 }