To align surfaces
- Select an edge on the first surface.
- Shift-select an isoparm on the other surface. You can align the edge of the first surface to any isoparm on the second surface.
- Select.
Limitations
- You cannot align edges that are closed or periodic.
- You cannot align a surface to itself.
- Exact tangency or curvature continuity cannot be guaranteed if surfaces are rational.
- You cannot align to a trimmed edge. Align Surfaces uses the original surface edge, not its trimmed shape.