Replies to This Discussion

DeveloperPermalink Reply by jasonshort on January 11, 2012 at 11:14am

This is usually caused by vibration affecting the bullet connectors. 

Jason

Permalink Reply by Gareth Rens on January 11, 2012 at 11:29am

Either vibration or faulty motor.

Come to think of it I had a very similar problem. Fortunately i wasnt in the air when it presented itself.

Heres a video of what the motor was doing

As you can see, it was a dry solder joint between the motor connections and the extension wires.

It came like this from the factory.

Permalink Reply by Rick B on January 11, 2012 at 11:48am

Should I solder the connectors instead of using the bullet connectors?

Permalink Reply by Gareth Rens on January 11, 2012 at 12:42pm

I use bullet connectors and they work fine. Just make sure you solder them! Dont play with them, SOLDER the biatches!

Logic is the best problem solver. If the motor doesnt work, plug it into another esc. If the motor still doesnt work, its the motor. If the motor works, then its the esc/pdb/bat etc. Plug another motor into the ?able esc, it it works its not the esc....

Wash rinse repeat :)

G:)

Permalink Reply by Rick B on January 11, 2012 at 1:22pm

Thanks for you help, I'm new to all this soldering stuff.

So when you say to solder them to the wires from the motor, do you cut off the banana connector on the motor or leave the banana connector on and solder that to the bullet connector?

Permalink Reply by Gareth Rens on January 11, 2012 at 1:33pm

Im not sure about your setup, but mine is as follows:

Soldered onto the wires coming out of my motor are extension wires that run all the way down the aluminium boom and come out of the hole on the side of the boom under the "dome".

Onto those wires are soldered male bullet connectors.

Onto my esc are soldered female bullet connectors.

They are plugged in and heat shrunk.

Is this how yours is setup?

Permalink Reply by Rick B on January 11, 2012 at 2:17pm

Yes, that's how mine are setup now.

Permalink Reply by Richard on January 11, 2012 at 12:16pm

I personally would just take out the motor and try it by itself... With that, you will know the answer pretty much... Meaning, if the motor doesn't work by itself then that is the problem... If the motor does work, then you have more to troubleshoot but more than likely if that were the case, it wouldn't be the PCB... or the Power supply or battery... more than likely most common errors, are due to the wires, or clips on the wires (some do this like with car radios),  the solder not fully connecting the components (cold solder joint) or the ESC...

This isn't a vibration thing, all vibrations can do is loosen connections or break them... Vibrations can affect the sin-waves but only with noise, and noise won't make your motor stop working...

AdminPermalink Reply by John C. on January 11, 2012 at 3:39pm

Get rid of the connectors and hard solder the motor to ESC connections together.

This has fixed both my AC and a brushless buggy the kids got for xmas.

It will take you 30-45 mins for an AC, but it was serious peace of mind for me.

JC