I am running out of props

[headviking]

My copter:
DJI f450, Naza M lite with GPS, 5000mAh battery, Spectrum DX7s tx, Spectrum AR8000 receiver.

It flys. It tends to drift off. I am getting a good GPS signal (slow green blinking light). Using the Naza assistant I confirmed that GPS, Attitude, Failsafe all work. Sometimes on take off it will oscillate uncontrollably. till I have to ditch the quad. Another blade replacement. The GPS is calibrated. Any ideas

 

[Motopreserve]

My copter:
DJI f450, Naza M lite with GPS, 5000mAh battery, Spectrum DX7s tx, Spectrum AR8000 receiver.

It flys. It tends to drift off. I am getting a good GPS signal (slow green blinking light). Using the Naza assistant I confirmed that GPS, Attitude, Failsafe all work. Sometimes on take off it will oscillate uncontrollably. till I have to ditch the quad. Another blade replacement. The GPS is calibrated. Any ideas

If it's wobbling uncontrollably it could be the PID tuning. Have you set it to the default or some suggested settings? Are the props balanced?

are you getting up and away from ground effect quickly, or is it happening low to the ground?

also, make sure your GPS location is programmed correctly in the assistant. It was opposite of what I assumed. + is for lower than the FC, - for above.

 

[headviking]

PID tuning? The prop are not balanced. I know for sure. I am using two different brands ( I crashed a lot). two are the OEM (DJI grey one's) and two are off the shelf (DJI white ones). I have on order two sets of carbon finer balanced blades on it way plus I have a balancer coming as well. I will double check the GPS buck location in assistance as well. It doesn't seem to want to stay still (GPS hold) vary well, and it seems to turn north all the time.
Video 1
Video 2

 

[Motopreserve]

Sorry, tuning in the assistant. . But I wouldn't worry to much about that until you have balanced, matching props.

Have you done the sensor calibration when you get to where you're flying it?

 

[headviking]

If you mean the gps calibration? Yes and it was successful. Otherwise what other sensors are there to calibrate. Sorry for the basic question. First multi rotor.

 

[Motopreserve]

If you mean the gps calibration? Yes and it was successful. Otherwise what other sensors are there to calibrate. Sorry for the basic question. First multi rotor.

Please don't worry about basic questions - that's what this section is for!

There is a more advanced, complete calibration done on the bench while in assistant. Also, there is the place to program in the offset of where the GPS is located on the craft. Then there is the one you do outside spinning it 360* (which it sounds like you've done). That outdoor 360 cal needs to be done each time you're at a new location.

But again, I think you should probably hold off until you have matching props. If you have mismatched props, let alone unbalanced, the MR is most likely going to fly erratically and could come down hard (or worse).

 

[jer]

Did you plug in the location of the GPS/Compass with in the assistant? XYZ
From my readings if this isnt done it will isolate like you are saying.

Side question for you, does this only happen in GPS mode? If in Altitude will it be okay?

 

[headviking]

Ok. To answer all the questions. I have setup all the assistant calibrations. I did input the location of my GPS puck head (x=-4, Y=4, Z=-10) right rear arm. I do the naza dance at every location. It does fly but if left alone in GPS hold it will start to hover around slowly around making a bigger circle and turning on it's own axis and then sometimes it will correct itself and stay put. When I fly it way from me it tens to skew to the left and turn.I have a new set of props on order (8 cheap ones and 6 carbon fiber) as well as a propeller balance tool. Hope new blades will help me figure out what is going on.

 

[Motopreserve]

Not sure if the issues are related or separate - but the spinning in circles has been covered a lot. Look up toilet bowl effect. It's even at the end of the manual. This may be different than your yaw issue during FF.

your last post describes something very different from what most people refer to as "wobble."

 

[headviking]

It's been raining off and on for a couple days. While I was installing some landing legs and checking the Naza Assistant I noticed that the number one arm/motor should be turning CCW and the the number two should be CW. Well I had them, One going CW and two going CCW. So tonight I changed them all so as to reflect the direction that is shown in the assist. Tomorrow should be a sunny day and I'll get a flight or two in to see if the toilet bowl effect is still there.