Here 14 cylinders intersect with axes going
through opposite corners of the following polyhedra

To get most isotropic oriented cylinder axes
two pentagons and two nonagons are placed horizontally at optimal heigths, +b2
and –b2 for the pentagons and +b1 and –b1 for the nonagons. KD is the smallest
distance between any corner.

With radius 1 the surface of the intersection
is

12.66527178

and its volume is a third of the surface.

Here follows a zoom of the encircled part

These very small facets complet the count of
the facets generated by 14 cylinders which is exactly 14*(14-1)*2 = 364.

In this intersection of 14 cylinders we have 72
**different** facets which is far more than the usual about 20 facets for
comparable intersections.