Hi all,
I recently finished building one of David's V3 tricopters with the integrated Naze board and got it flying. I am using his base tune and trying to tune the tricopter for my setup. However, I am experiencing a problem that I have never experienced before. Maybe it's something simple, but I am not sure where to look.
The tricopter is flying relatively nice, but it's doing this strange rhythmic pulsing of the motor, where all 3 motors (it sounds like) pulse and it jumps a few inches up and then it turns down the motors and falls back down by a few inches. Like a side to side oscillation you would get with too high of a P or I value, but a vertical oscillation.
It's as if I was to constantly jerk the throttle up and down. I played around with the PIDs, but it doesn't seam to change anything regarding the vertical oscillation. The problem was really pronounced when I had motor brake on. With motor brake off it is flyable, but I can still hear the motors constantly throttling up and down. It's a pretty rhythmic pulsing, about twice a second or so.
I checked the radio channels, and everything look ok, no strange glitches. Is it vibration from the motors? Something else?
Give me an idea of where to look, because I am kind of lost.
Thank you,
- Bogdan
I recently finished building one of David's V3 tricopters with the integrated Naze board and got it flying. I am using his base tune and trying to tune the tricopter for my setup. However, I am experiencing a problem that I have never experienced before. Maybe it's something simple, but I am not sure where to look.
The tricopter is flying relatively nice, but it's doing this strange rhythmic pulsing of the motor, where all 3 motors (it sounds like) pulse and it jumps a few inches up and then it turns down the motors and falls back down by a few inches. Like a side to side oscillation you would get with too high of a P or I value, but a vertical oscillation.
It's as if I was to constantly jerk the throttle up and down. I played around with the PIDs, but it doesn't seam to change anything regarding the vertical oscillation. The problem was really pronounced when I had motor brake on. With motor brake off it is flyable, but I can still hear the motors constantly throttling up and down. It's a pretty rhythmic pulsing, about twice a second or so.
I checked the radio channels, and everything look ok, no strange glitches. Is it vibration from the motors? Something else?
Give me an idea of where to look, because I am kind of lost.
Thank you,
- Bogdan