I have a Tarot 680 pro quad copter, 1550 propeller and 6s battery, KV300 motor, it suffers from severe vibration in the X-Axis (even not in Y-Axis).
The Anti-vibration Plate is like: https://www.aliexpress.com/item/32997575186.html?spm=a2g0o.productlist.0.0.7e5f5af1hDUznO&algo_pvid=0fe008fd-9011-468c-8016-27593e12febf&algo_exp_id=0fe008fd-9011-468c-8016-27593e12febf-3&pdp_ext_f={"sku_id"%3A"66910978050"}&pdp_npi=2%40dis!CAD!6.26!3.19!!!2.48!!%402101d4a716668615195995106e4c53!66910978050!sea&curPageLogUid=8gXiwxbLOOcD
The log can be seen in https://logs.px4.io/plot_app?log=4da95632-9242-4293-9800-482a02549478
From the acceleration power spectral density plot, there is a peak value at around 38hz and it’s constant, not correlated with motor RPM it seems. I have tested the balance of all my four propeller (run one by one and feel vibration by hand) and they are okay.
What could be the cause? How can I test it?
update, problem solved. The problem come from the anti-vibration plate, when I dissembled it and mount the FC directly with a 3M adhesive tape, everything works fine.
The newest log: https://logs.px4.io/plot_app?log=01063bed-88a3-4a6b-ad94-630a4c21b94d
