i have hairlines crack too in one of my motors, and stopped flying after reading this. I read that bondic work great for filling the cracks but it's hard to find one in my area , Would an Epoxy glue stop further cracking and fill the cracks.
We explored the natural beauty of the island of Lombok,Indonesia. On our journey,we used DJI Phantom 2 with Gopro 3+ and H3-3D. A high versatile drone that o...