{ "source": "analytic", "method": "U channel, rule t 1.5, R 3, K 0.33 (K unused folded): base y 4.5..45.5 x 1.5; two 90 deg bend annuli R 3..4.5; flanges y 0..1.5 and 48.5..50, z 4.5..20; extrusion along x 80", "body_count": 1, "volume_mm3": 10053.716694115408, "area_mm2": 13896.29850950676, "center_of_mass": [ 40.0, 24.999999999999996, 5.19228129375018 ], "bbox": { "min": [ 0.0, 0.0, 0.0 ], "max": [ 80.0, 50.0, 20.0 ] }, "note": "the rule edit applies to the whole sheet body (base built before it is 1.5 thick too, as the recipe's edge picks at z = 1.5 state)" }