3D Printable Propeller - Dimensions

I was a bit disappointed to find that every one of the (publicly shared) 3D-printable propeller design have never reached a crucial development stage, where the replacement of all propellers with the 3D-printable ones will allow liftoff. There are many designs, and only some of them were flight tested on a drone, but even those were barely able to lift off the ground. The purpose of this scene is to illustrate the components of a 3D-printable propeller I incrementally developed/remixed from an incomplete/incompatible design by Landru on Thingiverse. I developed it specifically to replace the broken props on a cheap stunt drone V950HD by Sky Viper. Now that the design has reached the point of full functionality, the fitting/mounting interface can be quickly re-designed to fit other similarly-sized drone models. To download the printable STL file, see https://sketchfab.com/models/a27957a4e72541c79ca0dee5857ef108 or