Sorry to resurect this vert old thread but i saw this on youtube. Please dont focus on the flat earth disproving aspect. But what is interesting is the yse of the drone flight controller to show when a mount is polar aligned the Gyroscope only registers movement in one axis when mount is moved. Just wondering if we could use this in reverse that is polar align until the gyroscope only regsiters movement in one axis?
https://youtu.be/AJOaBGAgyhw