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.