The head of our Tin Woodsman is perfectly spherical, and will be located at coordinates (0, 2, 0). While it would be possible to duplicate the ellipsoid solid created above, and modifiy it to produce the desired sphere, since all the parameters of the head sphere are known, it is more economical simply to use the in command to construct it directly. Figure (wm-head) shows the results of this operation.
mged> in e.1
Enter solid type: sph
Enter X, Y, Z of vertex: 0 2 0
Enter radius: 1
mged>