Thank you for the suggestions. Simplification seems to always be the best answer. I wound up useing the sweep command with two rails. After some tweeking, the product seems smooth enough to give a go on the router. By the way, output as an .STL is working flawlessly with Vectric 3D.

Keep up the great work!

-jp

This looks like exactly what I want. We don't have to wory about either end of the blade. The shank end will have a metal ferule on it and the tip doesn't have to be finished, it will be held in place by a dead center tail stock. I think the procedure would be to write a program for the top of the airfoil and another one for the bottom of the airfoil. Carve the top, turn it over, carve the bottom. Then hand finish the tip and the area next to the metal ferule.