S4096 E-flite UMX ASK-21 Airfoil Micro Drone Propeller (42.17g thrust @ 3V)

thingiverse

I designed the propeller using the **S4096 E-flite UMX ASK-21** airfoil. It was tested on the **[Drone Propeller Thrust Testing Jig](http://www.thingiverse.com/thing:2302071)** (test results provided below). It was printed slowly, with a **[0.2mm extruder nozzle](http://amzn.to/2qQdFvg)** at 0.04mm layer height. I cleaned the print with the help of an **[X-ACTO Knife](http://amzn.to/2pV1sGA)** After this, I got to finishing the part with a small piece of **[500 grit sandpaper](http://amzn.to/2pTNwic)**. These are the measurements for a few voltage values (you can also check these out in the images): - **1.5V** => **11.61 grams** - **2V** => **20.29 grams** - **2.5V** => **29.99 grams** - **3V** => **42.17 grams** The included files consist of all shots taken during the test, along with 6 txt files that contain airfoil coordinates, the printable STL files and the SLDPRT files. If you'd like to use the propeller, make sure you have a couple of **[8520 coreless motors](http://amzn.to/2qPUhi4)**. You can use the SLDPRT extension files, in case you want to adapt the model to suit your needs. **P.S.** Airfoil plotted using the matplotlib library for python.