{ "source": "analytic", "method": "plate 40x30x15 minus d6.8 cylinder 12 deep (to the shoulder) and 118 deg drill point cone (h = r/tan59, V = pi r^2 h/3, lateral pi r * r/sin59); cosmetic thread adds no geometry", "body_count": 1, "volume_mm3": 17539.467413298902, "area_mm2": 4762.405554138465, "center_of_mass": [ 20.0, 15.0, 7.469794810863136 ], "bbox": { "min": [ 0.0, 0.0, 0.0 ], "max": [ 40.0, 30.0, 15.0 ] }, "faces": 8 }