mid: 1588
url: http://www.3dmodelz.com/Free/Vehicles-free/dls/Train-Caboose.zip
ref_url: 
format: xthreexds 
pid: 48032
polygons: 7716
connected_components: 135
average_dihedral_angle: 1.20213
bounding_box: xmin = 0.025, ymin = 0.025, zmin = 0.025, xmax = 0.269842, ymax = 0.433029, zmax = 0.975
avg_depth: 1.820759
center: (0.147369,0.221349,0.516099)
scale: 0.526999
principle_axes: (-0.002659,0.042703,0.999084), (-0.001126,-0.999087,0.042700), (0.999996,-0.001011,0.002704)
principle_values: (0.057746,0.013849,0.005307)