Gimbal Buzzing Fix (and Adv.)

[jgrouse]

Just a quick 5 sec fix for the buzzing gimbal issue. As shown in the middle of the video there is a small grub screw that needs tightening (ensuring the arm attached to the yaw motor shaft it clear of the top and bottom braces before you tighten it as it can slide to the bottom and actually touch the bottom brace). Preferably use thread lock to prevent it happening again. Hopefully this will prevent more people giving up and getting a replacement P3 (after long delays).