New (to me) quad, everything seems to be running right, but as I try to take off the quad tilts to the right severely.


Doesn't seem wildly out of control and I was able to counter the tilt briefly to hover.
I believe motor direction is right, props are on correctly.
Quad build specs:
https://rotorbuilds.com/build/30840

Any chance you are in angle/horizon mode? In which case you may need to calibrate the accelerometer.

Otherwise you can arm it on the ground and check motor response. If you just yaw, or move the pitch/roll slightly to make sure each motor is responding accordingly. Also seems your setup has blackbox so that may give some clues too.

If your motor direction or prop direction wasn’t correct, I don’t think you’d be able to counter the roll and hover.

I’d suggest:
-make sure your board orientation is correct (make sure the moving model of the quad in bf or quicksilver correctly corresponds to physical movement of the quad)
-calibrate your accelerometer
-make sure your transmitter trims are all centered.
-calibrate your transmitter.
-if your transmitter has a screen and a channel monitor, check it to make sure everything is how it should be.
-check the rx tab of betaflight (or state tab in quicksilver) while your transmitter is on and bound, and see if everything looks like it should and correctly responds to stick movements and stick center.

I don’t see your flight mode on your osd. Does this happen in all flight modes, or just in angle/horizon, or just acro?

Thanks.
When armed and on the ground I did try to yaw/pitch/roll. It seemed like I rolled to the right even when I tried to roll to the left. All other movements seemed correct.

I added flight mode to the osd, I am in air mode.
Board orientation seems correct from betaflight model
Accelerometer is calibrated
I believe radio trims are all centered (other quads flying fine)
Transmitter calibrated
All stick motions look correct in betaflight rx tab

that could be an issue by choosing a wromg firmware target, did you flash the fc lately?

do you have a single model on your radio for that quad?

check the sticks on your radio, compare the mouvement of the sticks to the display.
enter betaflight and compare the mouvements in betaflight receivertab.

if it doesnt act like it should in betaflight receiver tab, go to the cli tab and write "rxrange" - post it back here

I did not flash the FC, but I just purchased the quad used, so I'm not sure it's history.
I made a separate model on my radiomaster zorro.
Betaflight receiver tab, sticks give the proper input and quad rolls as it should in the BF model.

That is quite odd. Seems like you checked these already:

1) gyro/accel is working correctly and in correct orientation
(I believe the 3D model only show accelerometer readings, to check gyro you may need to go to motors tab)

2) each motor spins up using motors tab (with props off) and if you have bi-directional dshot, when you move the master slider all motors rpm move together. Just test the lower half of the throttle, do not run your motors at max throttle without props.

3) stick center setting in receiver tab is set correctly. roll stick slider moving exactly as per your radio.

Also flight controller is securely mounted and no prop on upside down right?

Not sure on how to check the gyro in the motors tab, just that my?

Motors all spin according to BF directional image (which is set to reversed), props are mounted correctly for that direction.
Set to bidirectional dshot600
Each motor spins independently and they all run seemingly the same when the master slider is moved.
Sticks all respond as they should on the RX tab and
All physical mounting appear secure

I'm sure when I see you in person mstc, that you'll spot some amateur-hour mistake I've overlooked.

You can see it on the graph and numbers in the upper right.
When not moving, they should all be close to 0. If you rock the roll axis back and forth you should see the X axis plot run up and down like a sine wave.

Thanks. Gyro sits still when the quad is still and the graph goes sensibly wild when I move the quad. I don't have the knowledge-base to tell if it is all as it should be, but it looks OK.
Rain has slowed me down on testing this one today, it's not props on in the living room testable like the whoops are. Whomp whomp.

I think I'll flash the firmware and see how that does me. Just took photos of all the BF pages, fingies crossed.

(23-Jun-2023, 09:30 PM)FPVme Wrote: I think I'll flash the firmware and see how that does me.  Just took photos of all the BF pages, fingies crossed.

Was gonna say just start fresh that way you know what's what. But one easy thing you can do is swap two motors around to see if the problem moves or stays on that side. It'll indicate if the motor itself is having trouble spinning up or if it's indeed a software thing / ESC on its way out.

It looks like the back left motor did/does have something fuckey going on. Error at 100% on motor 2.
Is that likely a replace the whole motor situation, or is there something I should attempt to trouble shoot first.
Haven't soldered a motor before.