Flexible Landing Gear for Quadcopter "Crossfire" Version 3

Further improved version of my flexible landing gear for MikeyB's quadcopter "Crossfire" or my derivate "Crossfire Mini".

*(Compatibility with Crossfire 2 is about to be tested)*

After hard landings, even the version 2 of my flexible landing gears broke. I detected and fixed the critical regions, now it's really stable.

In comparison to version 1 and 2, it is now printed upside down. The part pointing towards the quadcopter's arms has been redesigned and is now very stable.

The flexi