Rhino Loft

1. Explode your curves and rejoin them to create the rails for 2 rails command.
2. Run sweep 2 rails command to create the blue white and red surfaces.
3. Run Blendsrf command to create the violet and green surfaces
4. Run Intersection commando to create a curve in the green and violet surface intersection. Probably you should edit the curve a little bit to get a clean curve.
5. join the surfaces. Use showedges command and look for surfaces naked edges.

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