PLOTTED AIRFOIL, 10 IN DIAMETER, NACA 0015

grabcad

This is a NACA 0015 airfoil plotted out for a 10 inch diameter vertical axis wind turbine (VAWT).This is a fairly efficient airfoil for this purpose. It was modeled using solid bodies, so you'll need to save each body as a new file if you want to use them. They are 4 inch long segments, with a center thru hole for a .25 inch rod. Thus you can print them out on nearly any 3d printer, and epoxy them together.