To see how the part was modeled, watch the video: https://youtu.be/BW9lkz1gHJg I’ve been working in robotic projects as a hobby and decided to acquire one of these 3D printers for fast prototyping. The first thing that came to my mind to test the capabilities of this machine was a model that I made for a vacuum cleaner propeller, and the results were amazing. I’ve decided to go straight ahead and use PETG filaments as raw material since it’s durable, heat resistant and easy to extrude. The original propeller broke prematurely, just few months after I bought the vacuum cleaner. I repaired it many times after, but at one point it was falling apart. The copy I made in PETG did a great job. It creates an unbelievable pressure and it's still running and doing well. I was very happy with the results.