Unstable hover with 500.

[ringolong]

Hi All!

I have just completed a 500 build. I am having an couple of issues with it though , and I am not sure what the solutions are. Any advice is appreciated!

The first issues is that I have balanced all of the props, but it is jumpy while hovering with both 9 and 10 inch props. (my 250 is more stable at hovering than this one is)

The second issue is that it barley flies with 9.5 cf props(hover at around 65% throttle). Everything I have read states that it should fly with 9 inch props on a 4s just fine.

Setup details
Weight approximate 1475 grams (added all the part weights)
Falcon32 (Naze32 pro clone)
FrSky DR II ppm mode
Diatone Reptile 500 (Quad frame)
MT2216 900kv v2
Nano-tech 4500mah 4S
MS 30A escs (SimonK RapidESC)
Gimbal

 

[GJH105775]

Welcome to quadcopter forums

To rule out the transmitter could you verify it on your other quad? It sounds like ESC or FC problem could you test this, or post a video? Sometimes you could have it set to re-level too fast.

 

[ringolong]

Thanks GJH!

The tx is fine as I run two other quads on it just fine, they are just smaller. This is my first larger quad.

I will try to take some video of what it is doing tomorrow and post it.

Do you know if there a setting on the Naze to adjust the re-level settings?

 

[GJH105775]

I am not familiar with the naze, but I think all full FCs have it.


Here are the settings as I understand them on the KK2.1.5, this may be true for the Naze.

Pgain - how fast the quad responds to re level
Plimit - ~5 controls how much you can make quad go from level

ACC trimming positive - right

 

[holtneil]

Hi mate a 500mm size quad on 9oo kv will do well on 10x4.7 9 inch is to small and will find it hard to lift , if the wobble is after an input and is a slow wobble its the I gain for that channel if its a faster wobble its the P gain set up in normal mode not self level

 

[ringolong]

Thank you both for your advice!

I'll stick with 10inch props. I made adjustments to the p gain and it seems to have helped

 

[holtneil]

Hi mate once you have all the parts to how you want it , then adjust it like this do one axis at a time , put the I gain to zero bring up the P gain till you get a fast wag then lower till it stops , the bring up the I gain till you get a slow wag then reduce till that stops , now make the gains the same on the other axis and your done