Onera HOR20 Airfoil Micro Drone Propeller (28.25g thrust @ 3V)

thingiverse

Notice: This airfoil is quite substantial. I had to smooth down the final print fairly thoroughly, to capture every fine detail of the curve. The propeller was modeled after and designed from the Onera HOR20 airfoil coordinates. Tests were conducted on the [Drone Propeller Thrust Tester](http://www.thingiverse.com/thing:2302071) (all results can be seen below). Part printed at a slow speed, with the aid of a 0.2 nozzle at 0.04mm height per layer. I cleaned the final part using an [X-ACTO Knife](http://amzn.to/2pV1sGA). After that, I went on and sanded it with 400 grit sandpaper. Here are the thrust measurements for a few voltage presets (you can also view these in the images taken during the test): - 1.5V => 6.04 grams - 2V => 11.85 grams - 2.5V => 20.28 grams - 3V => 28.25 grams The files you can download consist of all the pictures taken during the test, with six text files that have all the airfoil coordinates used in the build, the STL files and the SLDPRT files. If you want to have some fun with the propeller, you should grab a [8520 coreless motor](http://amzn.to/2qPUhi4). Use the SLDPRT extension files, just in case you wish to make your own changes to the drone propeller. P.S. Airfoil plotted using the matplotlib library in python.