Gimbal bounce

[RodneyC]

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So I've been searching the last couple days and can't seem to find anything that helps me with this issue but as you can see in the video the gimble has developed bounce. It will do this a couple times and and and then return to 90. I've tried recalibrating the IMU and it didn't resolve the issue.
~R

 

[RichWest]

Would be happy to help, but you need to provide a better description for what and when this is happening...

Also:
Is this a used gimbal?
Did the gimbal ever work correctly?
Did you crash the bird and gimbal?

 

[RodneyC]

It was bought used. I've got about 2 hrs total flight time. No issues. I have even have a few videos under my belt. No issues. The only crash came on my very first flight, but it was almost on the ground, human error, but everything was fine after the fact.

Thinking about it, it started after I tried missions in solex for the first time. Not sure of that is related. That is the only thing I can think of, I will pull lugs when I get home tonight

 

[RichWest]

I don't think Solex is the issue. Seems hardware related.

I had a wonky gimbal, turned out to be the tilt paddle off the controller. I blew out the controller from inside and out around and in the paddle control. Also checked for loose connection in the controller as well. It solved my problem, still not sure which worked, but its never been an issue since. Worth a try.

Some people have had the ribbon cable inside the pitch motor housing catch on some adhesive. You can test, with Solo turned off, rotate the camera holder full down and then full up by hand slowly. If you hear a click or feel it catch you'll know.

@just_bruce has mentioned several times about a sensor that could fail. Not sure this is your problem, but worth calling him out to get his take....

You could run a stick calibration, search the forum for guidance on that procedure.

 

[RodneyC]

Sometimes life and work just don't let you get to things when you want to, anyway, it would seem things have gotten a little weirder. Instead of the gimbal being twitchy, the whole bird is, dipping.

I ran a stick calibration, rebooted, then turned everything on. As I sat hear and looked at solex, it was showing movement away from the home position, which seems wrong, since it was just sitting there on the floor.

Anyhow that is where I am at now

 

[RichWest]

If you are adjacent to or in a house the gps will drift, it is expected.

Dipping? While flying or just hovering?

Post up your logs, others here are able to interpret and maybe able to ID the problem you are experiencing.

 

[RodneyC]

I was actually in the house, so, good to know.

It was supposed to be in just a hover. I took off and wanted to watch the gimbal and record what it was doing. It started drifting and then doing the dipping.

Here are the logs.

Thanks Rich, and to anyone in advance who looks at the logs.

 

[RodneyC]

**Update**

I went through a series of tests to narrow down my issue(s). First, after much reading, I decided my secondary issue, the "dipping", was due to lots of GPS. I opened her up and found the copper/cardboard shielding for the Rev b GPS. So I purchased the GPS shield upgrade, and the mRo GPS. A high of 25 satellites, I'd say issue solved.

The gimbal bounce, the original issue. I ran a motor test and found that when pod 1 ran it was louder than the others and when it ran it caused the gimbal twitch. Spinning by hand it was a lot rougher than the others. I've purchased a new pod and waiting for delivery. Hopefully this resolves the gimbal issue.

With regards to the motor pod. Does anyone know if you can get your old ones refurbished/repaired?

 

[RichWest]

With regards to the motor pod. Does anyone know if you can get your old ones refurbished/repaired?

T-Motor has recently released the exact replacement motor for the stock motor pods. Not heard of anyone offering a service just yet to replace the motors. For most here it's been a DIY effort. I'm sure you can find someone local if you have the replacement motors ready....