Hi,
I've been testing / flying with a VOXL2 running px4 and ModalAI ESC (m0134-6 using the low rpm firmware). I've gone through the calibration process for each motor/prop combination, but in each case I am getting the same behavior. I am able to take off and fly normally for about a minute but after a about a minute, flight control becomes erratic and the quadcopter crashes (or I land beforehand). 3 out of the 4 motors are cool, but the 4th motor is hot. This has happened with 3 different sets of motors on the same ESC channel.
I originally thought I needed to adjust the tuning, but I'm wondering if there is actually something wrong with one of the ESCs on the ESC board. I have a M0138 to test as well, but I was only going to swap out to that board as a last resort.
Thanks!
Matt