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  1. Repli 06.09.2015 at 14:04 |

    Hi Gektor,

    I have 1 question related to the 350 Pro controls precision: After doing a powertrain mod with SunnySky motors, Opera ESCs and aeronaut CamCarbon Light props on, I noticed an issue in flight control: When I hold the quad in my hand and roll it by more than 40°, a strong resonance / rattling is building up. This even caused the quad to crash once when it tried to compensate a wind gust. I tried to down-tune all P/D values (and even I) in Mission Planner, both RATE and Stabilize parameter sets, the problem still persists. I have calibrated ESCs individually, but I’m not sure if this behavior is due to ESCs getting out-of-sync at high thrust (this is what the outward motors try to do: When I roll the quad hard, they spin up to max thrust trying to compensate / blaance back into neutral). Or it could be the soft, quite flexible arms of the 350 Pro need some stiffening since they are prone to mechanical vibration / resonance themselves. Any idea where I should start analyzing the problem further and how to cure it?

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