Hi all!
Have had my FC40 for a while but it recently met with a tree at high speeds, which absolutely devastated the body and two of the motors.
So playing around, i've 3D printed a frame based on an F450 and put all of my internals into it. It's came out looking pretty cool, but when I fly it, i'm having issues with it listing around, and biasing to the rear left motor in a tilt.
If i'm on the controls, i can keep it pretty OK, but GPS lock will not work, and the entire craft "toilet bowls" around, always beginning in the same rear-left tilt. I get solid green with the GPS but i am in a valley with trees and my house in the way, so i'm not exactly trusting of it, so i usually just fly in ATTI mode-- but the odd listing / wandering behavior still persists even there- it almost looks like it's off-balance and not leveling out.
Another concern i have is where i mounted the compass module, It seemed like a good place since it fit on the GPS mast pretty well, but not sure if that's a good place to really have it. I've uploaded some pictures to show my build-- excuse the wiring for now, as i haven't really messed with finalizing it all yet.
See anything that really stands out as wrong? How can I correct this odd biasing behavior? IMU is within spec and i've calibrated it multiple times.
Really wish there was a way to "trim" it, but i know the NAZA is supposed to work all of this out automatically.
Any thoughts?
![photo_2017-01-28_18-56-35.jpg photo_2017-01-28_18-56-35.jpg](https://phantompilots.com/data/attachments/71/71185-017f58a5ea53d55147cc3a174e276a56.jpg)
Have had my FC40 for a while but it recently met with a tree at high speeds, which absolutely devastated the body and two of the motors.
So playing around, i've 3D printed a frame based on an F450 and put all of my internals into it. It's came out looking pretty cool, but when I fly it, i'm having issues with it listing around, and biasing to the rear left motor in a tilt.
If i'm on the controls, i can keep it pretty OK, but GPS lock will not work, and the entire craft "toilet bowls" around, always beginning in the same rear-left tilt. I get solid green with the GPS but i am in a valley with trees and my house in the way, so i'm not exactly trusting of it, so i usually just fly in ATTI mode-- but the odd listing / wandering behavior still persists even there- it almost looks like it's off-balance and not leveling out.
Another concern i have is where i mounted the compass module, It seemed like a good place since it fit on the GPS mast pretty well, but not sure if that's a good place to really have it. I've uploaded some pictures to show my build-- excuse the wiring for now, as i haven't really messed with finalizing it all yet.
See anything that really stands out as wrong? How can I correct this odd biasing behavior? IMU is within spec and i've calibrated it multiple times.
Really wish there was a way to "trim" it, but i know the NAZA is supposed to work all of this out automatically.
Any thoughts?
![photo_2017-01-28_18-56-42.jpg photo_2017-01-28_18-56-42.jpg](https://phantompilots.com/data/attachments/71/71182-e705e7cc51f47c46dc2bb6cd685aefe2.jpg)
![photo_2017-01-28_18-56-52.jpg photo_2017-01-28_18-56-52.jpg](https://phantompilots.com/data/attachments/71/71183-c9e11ad83a6d2319d59f4095c2c5038a.jpg)
![photo_2017-01-28_18-56-57.jpg photo_2017-01-28_18-56-57.jpg](https://phantompilots.com/data/attachments/71/71184-60081bf84b01a1c9838670d6f290f1da.jpg)
![photo_2017-01-28_18-56-35.jpg photo_2017-01-28_18-56-35.jpg](https://phantompilots.com/data/attachments/71/71185-017f58a5ea53d55147cc3a174e276a56.jpg)