so this has been driving me nuts for the past week. i've got the Ronin mounted on a custom hex build and ever since i clipped a tree branch on landing (not a crash, just a dumb moment of not watching my altitude) the gimbal has been slowly drifting on the roll axis. like it corrects, holds for maybe 3-4 seconds, then slowly creeps about 8 degrees to the left before correcting again. over and over.

ive already recalibrated the IMU twice and done a full gimbal calibration through the app. motors spin fine when i manually move it, no grinding or anything weird. the footage is basically unusable because you can see this slow drift every few seconds and the correction jerk is even worse than the drift itself.

not sure if something physically got knocked out of alignment or if its a firmware/sensor thing. anyone dealt with this before? the gimbal itself doesnt look visibly damaged but obviously something is off internally

had almost the exact same issue after a rough landing with my Zenmuse. turned out the ribbon cable connecting the roll motor to the controller board had a partial tear ? not visible unless you really flex it and look close with good light. the gimbal acts totally normal mechanically but the feedback loop is getting corrupted data so it just keeps trying to correct something it can't properly sense. worth pulling it apart and checking before you assume the motor or IMU is actually bad.

this might be a dumb suggestion but did you check if the actual motor mount for the roll axis got slightly bent? even a tiny deformation in the arm that holds the motor can throw off the balance enough that the algorithm is constantly fighting itself. i had something similar and the "fix" was just bending it back by hand which sounds sketchy but worked fine. also are you running the latest firmware because there was a known drift issue in a couple builds that got patched