Fan blades replacement
I have two fans at home, one of them is quieter than the other. I assumed the reason was the shape and number of the blades, as the noisier one features a 3-blade rotor while the quieter one is a 5-blade one. A good design exercise that might bring some real-life benefit if proved successful. So I went on and created a model using Onshape, that had to be able to be printed in the Prusa MINI. I designed two parts , the hub, and the blade, that will join with a dovetail. While I did not do an exact copy of the quieter fan blades, I tried to stay as similar as possible. Which may not be good enough for the best results. It was also a project to explore the viability of the 3D printed approach. So this is what I designed: To my amazement, 3D printing the blades really favored printing them all together, as the print time of each layer was so small if printing just one that the print needed to be slowed down. So printing five blades did only required around 3 times the prin...