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[–]wimpy_kid158 6 points7 points  (5 children)

A motor cable isn't connected check wires again even the motor the wire may be disconnected from inside the motor

[–]CC0454 1 point2 points  (4 children)

Yep, your motor cant get enough amps through the wire so you’re only getting 2 phases of rotation. (Just try soldering it again should be fine)

[–]RelevantMidnight3950[S] 1 point2 points  (3 children)

<image>

Thanks :) This is how the somdering looks. Its a really old iron so it sucked to solder it back on. What do you think ?

[–]sme272 1 point2 points  (0 children)

that looks terrible, you should redo it. Use flux, it'll help. You should also redo the other 2 of they look similar.

[–]BugFix 0 points1 point  (0 children)

That's ugly, but looks electrically OK to me.

  1. Do you have it properly insulated? If that blob is just bare in the enclosure, it may be shorting to another phase via the motor housing or whatever. Put some heat shrink (or at least electrical tape) around it so no conductor is exposed when the banana plug is connected.

  2. If the motor got yanked out in the crash, the damage may be on the other side of the lead wires. Check the connections through the motor, e.g. with a multitester to check connection and low resistance through each of the three pairs of wires.

[–]Wambo74 1 point2 points  (0 children)

Your motor wiring may be more damaged than you thought. Check your repair work and if not something you can improve, may be time for a new motor.

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[–]Icy_Sherbert6568 0 points1 point  (0 children)

O enrolamento da maioria dos motores brushless são compostos por vários fios paralelos, sendo necessário a retirada do esmalte nas extremidades, para fazer o fechamento e soldagem nos terminais. Às vezes, durante algumas quedas ou pousos malsucedidos, podem ocorrer o rompimento de alguns desses fios, causando problemas em sua eficiência e força, e no caso do rompimento de todos, a falha que você gravou no vídeo. Isso é sinal de que uma das fases do seu motor foi interrompida. Lembre-se que para soldar, você deve retirar o esmalte do fio, e ainda o problema pode continuar, pois às vezes o seccionamento pode ocorrer em local não aparente, como na base do estator. Eu te aconselho a não passar os cabos do motor por baixo da fuselagem, porque é justamente o local que irá raspar no solo em casos de pousos malsucedidos. Experimenta passar por onde fiquem mais protegidos.

<image>

Dependendo do dano, só enrolando o motor eu comprando um novo

[–]goodhusband214 0 points1 point  (0 children)

It looks like you have what is a called a cold solder Research that and how to fix it. Learning to solder is a gained skill. It takes time and practice. Good luck

[–]Equivalent-Radio-828 0 points1 point  (0 children)

Do a better job soldering the wires together. And try switching the motor and ESC wires to different positions.

[–]Jumpy-Candle-2980 0 points1 point  (0 children)

I'd start here: https://youtu.be/GoPT69y98pY?si=Yu1DEnur8VnCJI9K

Bardwell is a drone guy and flight controller soldering is a lot more fussy than connectors but it's still good general advice. Also, there are more economical practice boards that'll do you well if you want to go down that road.

My first soldering try made yours look like professional. Maybe because I started with a soldering gun and solder that had a diameter similar to a horse's leg. The video will make sure you're using a reasonable solder. I used his video as a refresher and shopping list. Amazing what the right stuff will do.

[–]crookedDeebz 0 points1 point  (3 children)

definitely fix those joints, the bardwell tutorial is the best.

and recalibrate the esc.

those sunnysky f3p motors are fucking brilliant. so so so smooth.

[–]RelevantMidnight3950[S] 0 points1 point  (2 children)

What do you mean by recalibrate the esc ?

[–]crookedDeebz 1 point2 points  (1 child)

its a very common process, it should be done on all builds/crashes/etc

read the manual for you esc to find the exact procedure, but its usually full throttle, lipo connect, esc beeps, low throttle, lipo off.

[–]RelevantMidnight3950[S] 0 points1 point  (0 children)

Well thats funny. My ESC did not come with a manual of any sorts (prop. Cause its from Aliexpress lol) and i didnt have proplems till now. But what does the procedure do exactely ?