Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 22-Nov-2021, 12:54 PM (This post was last modified: 22-Nov-2021, 12:58 PM by FalcoFPV. Edit Reason: Additional question ) Hi all! I'm building my first quad from the scratch and it really not so easy).
I planned to make custom small cinewhoop and took Pavo 30 frame.
I Used F405 Mamba Mini mk3 stack 4S
Tbs Nano rx
Wolfwhoop q-1 VTX
Runcam Phoenix 2
and used the motors which I ordered previously for another model
Iflight xing 2203.5 3600KV
I Did all setups and drone worked, I was really happy and excited.
But the problem is when I'm throttling a bit, drone goes crazy and hovers. (props, mapping and direction fine)
Also drone vobbling and oscillates at lower rpms and sometime after I take throttle at 0
Also I cant figure, is this accelerometer software of hardware problem...When I take the drone and roll it, after few seconds virtual models returns to horizontal position in betaflight...
Please help to figure this out. Tons of information and my brain is boiling)) ![[-]](https://intofpv.com/images/collapse.png) • Posts: 6,092 Threads: 172 Likes Received: 2,283 in 1,830 posts Likes Given: 4,721 Joined: Feb 2019 Reputation: 100 22-Nov-2021, 01:56 PM (This post was last modified: 22-Nov-2021, 01:56 PM by hugnosed_bat.) as it flew fine at first, check for an simple hardware issue first: is all mounted properly? nothing loosen? frame still stiff? any vibrating part?
capacitator still attached? • Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 (22-Nov-2021, 01:56 PM)hugnosed_bat Wrote: as it flew fine at first, check for an simple hardware issue first: is all mounted properly? nothing loosen? frame still stiff? any vibrating part?
capacitator still attached? No, no first flight at all) this issue is from the moment I put all settings in betaflight. FC mounted tight. Frame looks stiff enough. No vibrating parts. Capacitor attached. • Posts: 6,092 Threads: 172 Likes Received: 2,283 in 1,830 posts Likes Given: 4,721 Joined: Feb 2019 Reputation: 100 does a screw touch the windings?
do you run default pids? • Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 (22-Nov-2021, 05:32 PM)hugnosed_bat Wrote: does a screw touch the windings?
do you run default pids? nope. All good with the screws and pids here the vid https://youtu.be/m1ySEjv_82g BF settings https://ibb.co/R2b16sm https://ibb.co/9qfLPWv • Posts: 6,092 Threads: 172 Likes Received: 2,283 in 1,830 posts Likes Given: 4,721 Joined: Feb 2019 Reputation: 100 double check the following;
-rotor spin direction (in motortab without props) does it match the picture?
-motor order
-board direction, in betaflight configurator is an animated model, move your quad and compare to the simulation • Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 (23-Nov-2021, 11:04 AM)hugnosed_bat Wrote: double check the following;
-rotor spin direction (in motortab without props) does it match the picture?
-motor order
-board direction, in betaflight configurator is an animated model, move your quad and compare to the simulation Done. All ok with motor position and rotation direction. Also controller directions are ok( • Posts: 4,550 Threads: 38 Likes Received: 1,245 in 1,064 posts Likes Given: 430 Joined: Aug 2020 Reputation: 118 Take the top plate off and show how you have mounted the FC?
Did you orient the FC different to the regular direction? I see you have a 180 deg board alignment along the yaw axis in the configuration. • Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 (23-Nov-2021, 12:08 PM)kafie1980 Wrote: Take the top plate off and show how you have mounted the FC?
Did you orient the FC different to the regular direction? I see you have a 180 deg board alignment along the yaw axis in the configuration. Yep, I put stack upside down and during setting up the Betaflight put this correction. https://ibb.co/yfQd1n1 https://ibb.co/KVKWpkM https://ibb.co/Jrhd5W9 • Posts: 4,550 Threads: 38 Likes Received: 1,245 in 1,064 posts Likes Given: 430 Joined: Aug 2020 Reputation: 118 I am still trying to orient the FC the way you have mounted it from your photos but basically I think your Board and Sensor alignment is not correctly setup.
I can see you have a yaw 180 rotation but I will expect a 180 around roll or pitch depending on how you flipped the FC when you mounted it. • Posts: 4,550 Threads: 38 Likes Received: 1,245 in 1,064 posts Likes Given: 430 Joined: Aug 2020 Reputation: 118 Another question is is that shield conductive, I hope it is not shorting any pads. • Posts: 6,092 Threads: 172 Likes Received: 2,283 in 1,830 posts Likes Given: 4,721 Joined: Feb 2019 Reputation: 100 23-Nov-2021, 08:44 PM (This post was last modified: 23-Nov-2021, 08:46 PM by hugnosed_bat.) that shield has some pads, maybe there is some coating on the shielding material... bit it should be mounted fliped, the pads on the upperside.
the mamba shielding is thought to mount between esc and fc, not on top of the fc.
i missed motor spin direction next to rotor spin direction, it could be worse to check it wither • Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 Solved! I just removed the screen and reassemble the stack. I think the problem was in screen or the nuts. I used few metal nuts to fix the stack! Here the photos of stack before reassembling https://ibb.co/cXCNHcB https://ibb.co/sVnTVPt https://ibb.co/qnKpPn5 Thank you all for the help! • Posts: 6,092 Threads: 172 Likes Received: 2,283 in 1,830 posts Likes Given: 4,721 Joined: Feb 2019 Reputation: 100 i wont tease you  but for future builds you can improve your soldering, maybe just by use better gear or heat adjustements :-) here is a great thread about the topic: https://intofpv.com/t-how-not-to-solder • Posts: 7 Threads: 1 Likes Received: 0 in 0 posts Likes Given: 0 Joined: Nov 2021 Reputation: 0 (24-Nov-2021, 11:49 AM)hugnosed_bat Wrote: i wont tease you but for future builds you can improve your soldering, maybe just by use better gear or heat adjustements :-)
here is a great thread about the topic:
https://intofpv.com/t-how-not-to-solder Totally agree...Thanks for the advice • |
