A set of blades from scrap pine on the cnc machine. Appear to lift and spin up well. I am not sure why they spin up so well most use shims under the trailing edge to make them spin up easier. Maybe i'll try that next to see if they spin better / faster and still create lift. I also put a fish scale on the holder while they were in auto-rotation, over 1500 g of lift. Very stable too. I am shooting for a 700 gram model so that should be plenty of lift.
