3DR Y6 - Pixhawk doesn't seem to try to stabilize

Hi everybody,

I am not sure that I write in the correct section since I don’t know where the problem is, I am sorry if this is the wrong section.

I built my new 3DR Y6 with a pixhawk, I triple checked that the motors’ numbers are connected to the correct port, that every motor spins in the correct direction and that each propeller is correct (pusher or normal) and in the correct direction (front facing up)

I loaded the parameter file Y6-B

I am trying to perform my first flight in stabilize mode and it doesn’t seem to stabilize anything.

You see when I take off with my Naza, even when it is on the ground, if one raises the throttle slowly you can see that it is trying to level and when it takes off even if it is not well balanced it is almost perfectly horizontal.

Now with the Pixhawk + Y6, it is nothing like that, if I raise the throttle slowly, the back goes up and it flips on the front side.

If I use the elevator and push it backwards to avoid this then it flips left or right.

I used this page copter.ardupilot.com/wiki/stabilize-mode/ and changed the values Rate roll P from 0.055 to 0.15 and Rate Pitch P from 0.1 to 0.15, this doesn’t change anything it still flips at exactly the same amount of throttle.

In Mission planner, the HUD shows stabilize, if I move the Y6 the HUD shows coherent tilts (up-down-right-left).

Mission planner and the pixhawk firmware are updated to the latest version.

I really don’t know what to do now to solve this issue…

Could someone please help me?

Thank you in advance

We have only just switched the ready to FLY Y6 to the Y6B motor configuration. The instructions in the kit still describe Y6A. Please ensure your wiring is according to
copter.ardupilot.com/wiki/common … ick-start/

and you should be good to go with the Y6B configuration

Thank you for your answer.

I don’t know if you at ardupilot are the same people than at 3DR but 3DR is so unprofesionnal.

First the param file on their website was outdated and now this, I didn’t even get the right propellers and I ruined the ones I have since it hit the ground many times.

I don’t even know if the motors are still in perfect condition since they got stuck when the Y6 flipped and it takes some seconds to turn down the power.

If you have nothing to do with the fact that 3DR provides outdated doc, thank you again for your time, you helped me several times but I am definitelly going to complain to 3DR because one cannot sell flying devices with such careless behaviour.

I am still completelly confused because on 3DR website, the Y6 I bought is the “2013” version while on the link you provided, the “Y6B” is the 2014 version but when I asked in another post if I had the A or B version someone answered that if i just bought the device (order made on 2014-01-26) I had the “B” version.

Fortunatelly I had some propellers in stock so I could set up the “B” version and it flies quite well!

Thank you again for your help.

One last thing : In my order at 3DR it says 3DR Y6 2013 version (while on your link there is a note saying that the “B” version is the 2014 version), now maybe I am the one who made the mistake believing the person who told me I got the “B” version while I may have the “A” version since the propellers I got are for the “A” version.
But then why is there a “B” version if 3DR is selling only the 2013 version with the propellers corresponding to the “A” version?

Could you plese enlight me about this? I think that if I click on “solved” you may not see this so I’ll wait for you to see my question about the versions before I click on “solved”

Probably somebody got mixed up between the Y6 RTF and the Y6 kit. The Y6 RTF got changed to the new configuration before the kit did. If you have 2 different sizes of props, I suggest ordering some additional 10" props to use in the B configuration.

You can always get the most up to date parameter files from right inside the planner