Axis of Rotation in the Solid Rotor Interfaces
In the Solid Rotor, and Solid Rotor, Fixed Frame interfaces, the axis of rotation cannot be determined automatically. In these interfaces, the definition of the axis of rotation, along with the associated base point, must be specified manually. This is done in the Rotating Frame node.
In many cases, the axis of rotation coincides with either of the axes in the global coordinate system. Dedicated selections are available for this purpose. In case the axis only shares the direction with one of the global axes, an offset can be added by specifying a base point for the axis.
In other instances, it might be more challenging to specify its direction and base point. In these particular cases, the axis of rotation can be determined from selections of geometric entities, which may be either points or edges. In both cases, the base point is determined automatically.
When using the Solid Rotor, Fixed Frame interface, it is assumed that the rotating object is axial symmetric. For that reason, the axis of rotation must coincide with the axis of symmetry.
In versions prior to 6.4, the axis of rotation was defined in a Rotor Axis node. This is automatically replaced by a Rotating Frame node in newer versions.