Gaui 540H Retractable Landing Gear Mount

This bracket mounts cheap eBay retractable gears (28 x 25mm bolt spacing) to the Gaui 540H hexacopter, or any other multicopter with 20mm arms. It uses 3x M3 bolts for clamping, and has slots for 3 captive nuts.

Version 2 fixes the internal diameter and adds stiffening braces, greatly improving rigidity.