Easy print TPU 5" propeller
thingiverse
Got an inspiration to test if it's possible to create TPU propeller. So started sketching it in Fusion360. I went printability ahead in the propeller design. So tried to create an airfoil to be somehow practical.  Maximum overhang angle, to be printed without supports, dictates a pitch of the propeller. Seems that it's somewhere between 46 and 50. After printing some props came out perfectly balanced after cleaning the strings. But some needed a little trimming to be in balance. Balancing a propeller: https://www.youtube.com/watch?v=c4BoWs20KUc I've assumed that these tpu props will be too heavy. But to my surprise, it weights only 6g! Dalprop's T5046C weights 5,5g. So there's only 0,5g difference.  **2018-10-16** Update Second test flight: https://www.youtube.com/watch?v=S2zL7hnMeZo Propeller torture test: https://www.youtube.com/watch?v=KcdPLXUvPoQ This project seems to be kind of successful, with regard to that it was just a joke :D My next plan is to find an aerodynamic professional to help me to find a good compromise between a good airfoil and easy printability. If you know someone interested in this project, please let me know!
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