As long as the angles of the flange surfaces of the three fan leaves are consistent with the bottom surface, it does not need to be precise. The fan can adjust the angle of the fan leaves to change the power. Just process the bottom surface first, and then process the other three surfaces. Use datum planes with the same angle, and each plane differs by 120 degrees, equally dividing the circumference.
How are wind turbine hubs processed?
Introduction How is the wind turbine hub processed? As long as the angles of the flange surfaces of the three fan leaves are consistent with the bottom surface, the specific angle does not need to be precise. The fan can adjust the angle of the fan leaves.