MEAM.Design - SolidWorks - Sweeps
A swept feature is generated from at least two sketches. The first of the sketches (called the profile) must be planar (2d), and can be swept along either a 2d or 3d path sketch. Additional 2d or 3d sketches can be used as guide curves. Note: the profile sketch must be a closed section, while the path can be either open or closed, but most importantly, the path sketch must pierce the plane of the profile sketch (though the path and ''profile curves do not need to physically intersect).