www.phantomhelps.com addresses gimbal tilt...just trying to help...
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IMU and compass calibration
- Thread starter UpLift Aerial
- Start date
So, you're connecting one action with a disassociated reaction. I had the bog-standard horizon issue before I undertook a 4c (that's 38f) IMU calibration and it's still there. The IMU calibration has no effect on the operation of the gimbal, period.
There might be some confusion because doing a gimbal calibration after doing the imu is often recommended. It's the gimbal cal that, hopefully, clean up the horizon tilt. It didn't in one of my birds. Corrected the tilt in the Go app.
Correct. Unfortunately, I've found the horizon tilt is practically impossible to fix completely. I've tried the app at home and in the air, cali at home and in the air and I still have the darn thing. The only thing I've found to temp fix it is to yaw hard in the opposite direction then let it hover. That seems to fix it for a while but it comes back.
I flew 2 days ago no issues went out today calibrated successful on app when I took off noticed immediately there was a compass issue tried landing with difficulty wouldn't let me. Re calibrated several more times changed batteries and still having the same problem now I'm afraid it's gonna cause damage while trying to bring it down is flipping over.
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Did you attempt the recal in the same location? When the bird starts up ok and then gives you a compass error message after you take off, it usually means that there is some type of magnetic interference (e.g. Lots of metal nearby) at the site. What happens is that the bird initializes everything in the distorted field and when you climb out of range of the anomaly, the bird thinks that there is a compass problem because of the now undistorted field
I was going to ask the exact same question... when I had this issue I moved 50 feet and had no issue, didn't need to recalibrate and it flew perfectly.
I did and then moved about a mile away with same results. It's in a forest preserve so not much around to interfere
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Just tried again new location same exact issue I did notice the app did a update just before flight
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My apologies to all for citing an incorrect URL... [emoji15]
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DJI training video about IMU calibration includes gimbal tilt as reason for doing so.
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According to the video Dan posted, the surface for IMU Cal needs to be perfectly level.
Is there a tolerance for this? I ask because 0.0 on both X and Y axes is nearly impossible....I've checked and shimmed about 5 surfaces in an attempt to achieve perfection. The best I'm getting is 0.2-0.5 on X and Y.
Will that suffice for IMU Calibration?
W
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Is there a tolerance for this? I ask because 0.0 on both X and Y axes is nearly impossible....I've checked and shimmed about 5 surfaces in an attempt to achieve perfection. The best I'm getting is 0.2-0.5 on X and Y.
Will that suffice for IMU Calibration?
W
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