What command in NX can you use to create a body by sweeping a cross section along a path where the shape of the section varies along the path?

The Variational Sweep command in NX is specifically designed for situations where the shape of the cross-section changes along the length of a path. This feature allows users to create complex geometries by defining a series of cross-section profiles that can vary at different points along a predefined path. The path itself can be a curve, and the cross-sections can adapt in size, shape, or orientation, making it ideal for creating intricate models that require a gradual change in geometry.

This capability is especially useful in industries where designs such as complex tubing, automotive parts, or specialized equipment require a precise control of how the surface transitions along a path. Unlike other options that may create a single, uniform sweep or blend between multiple profiles, the Variational Sweep offers greater flexibility by allowing for a dynamic relationship between the path and the varying profiles.

The other commands like Path Sweep and Profile Sweep do not provide the same level of versatility for variable cross-sections along the path. The Loft Surface command is primarily for transitioning between two or more profiles rather than along a continuous path with variation, which further highlights the specific functionality provided by the Variational Sweep option.