Motors spinning differently when armed

T

tswack

Member
I took my hex out flying today for a few minutes and brought it back down to land. When I moved my throttle all the way down getting ready to disarm, my motors started spinning differently than the others (youtube videos below). There is also an unusual clicking noise I can't figure out either. When I armed my hex, the did the same thing again...and its not always the same one. When you give the hex a little throttle they all start spinning right away. I have already replaced all of my motors. I'm using blue 3DR motors (https://store.3drobotics.com/products/motor-ac2830-358-850kv-1) and DYS SimonK Program 30A Multirotor ESC I purchased from BuddyRC but can't find a link too them. I'm also using 9x4.7in props. This doesn't happen every time I arm and disarm the hex, but it does it often. Any suggestions?



 
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R

Ronan

Member
I have seen mine do the same thing with different motors but it always fly normally once i throttle up to take off.

The only thing is i don't hear a clicking noise like you, i would be alarm at that since that isn't normal.
 




E

edgarmillennium

Member
Just a question, when you say they turn different, are you referring to the direction it looks that they spin on the video??

Also it looks that you have your ESC programmed differently.
 

T

tswack

Member
edgarmillennium said:
Just a question, when you say they turn different, are you referring to the direction it looks that they spin on the video??

Also it looks that you have your ESC programmed differently.
Click to expand...

By spinning differently, I mean that a couple of them start to sort of twitch, spin slower or don't spin at all while the rest spin normally at that basic armed state speed, but when I slightly raise the throttle they all spin like normal at the same speed. As an update, a friend of mine suggested that I recalibrate them directly through the transmitter and receiver. I was calibrating them before by using the APM all at once method. After trying his method, I haven't had any reoccurring problems of the twitching motors and some not choosing to spin. So could this have something to do with it? If so what does it mean about my APM?
 

dazzab

dazzab

Member
tswack said:
I was calibrating them before by using the APM all at once method. After trying his method, I haven't had any reoccurring problems of the twitching motors and some not choosing to spin. So could this have something to do with it? If so what does it mean about my APM?
Click to expand...
I've had the 'all at once' techniques work a couple of times but more often than not I end up doing them individually. I don't think it has anything to do with the APM but has more to do with the specific ESCs. I think this issue is actually fairly common. Glad you worked it out.
 

E

edgarmillennium

Member
Im not old in this but on the RC world have long time. Personally i dont like all at once method. Sometines esc have little difference on sensitivity internally. So I prefer each one apart. Also you must verify that they are calibrating and not entering on programing mode like the multistar.
 

C

cootertwo

Member
I'm not sure about your MC controller, but in Naza, you can raise your motor start up speed, and usually correct that. But just move it a little at a time to try.:tennis:
 

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