Set Orientation by Sweeping an Axis Examples
Setting the orientation of the selected object as it is swept along the
trajectory.

Variable sweep with axis. Every section plane that is cut through a point on
the origin trajectory and through the selected axis has a profile section that
is aligned to the vector defined by the O-X vector in that plane, scaled by the
length of the O-X vector, and limited by the extents of the shortest trajectory.
This makes every section appear to radiate around that selected axis.
