Please consider supporting me via Patreon at:https://www.patreon.com/thedroneracingengineer David Rҳ quadcopter has too much vibration. Changing PIDs seems to have no effect. I walk him (and you) through the process of troubleshooting the issue and finding a solution. Troubleshooting is often a process of elimination. You perform tests that eliminate things that are unlikely to be the cause of the problem, identify the most likely thing to be the cause, and perform further tests to either confirm or eliminate that hypothesis.