Snaut Rocket

I got back from my track and i guess this is what its doing i didnt think of cogging before but this is my first electric.
My wheels just start twitching back and forth and the car cogs a couple of feet and stops then it does it again.
Just like this.
http://www.youtube.com/watch?v=NIB-xvsWYrM
(that isnt my car just an example.)
But i didnt know cogging affected the steering also.
Do i have to send the esc back or is this just a programming problem with the v3

hands without shadows

Does the motor spin when its disconnected from the drivetrain?

Snaut Rocket

update heres a vid of what its doing.
Dont pay attention to the end of the vid were you here a grinding noise, my axle popped out and i had to put it back in.

http://s240.photobucket.com/albums/f...t=MOV00324.flv

zjwhitrock

vid doesn't work

HandyRacing

I would check to make sure you don't have a battery issue (just to rule it out), by trying a back up battery.

Snaut Rocket

Vid should work now.
I dont have a back up battery maybe i should try it on 2s and not 4s

hands without shadows

Got another radio system or something to test this one with?

KRO

Looks too me like something glitching in the radio system , there doesnt seem too be much cogging going on too me ....

Snaut Rocket

Its not the radio system.
I tried my other receiver that works in my other truck and it did the same thing.
I guess its not cogging sense cogging is only with the motor.
With this i drive it for a couple of minutes and then the whole car wont move and then it coggs for a couple feet and the steering goes wack like that in the vid and then its normal again for another couple of minutes before it does it again.

Access

I would call up castle, maybe you got a dud ESC or a bad motor? No e-mail, phone them directly.
Or maybe your starting power is set too high, beyond what your batteries will handle?

The Hedgehog

Are you using 2.4 ghz?

The radio would work in another truck because the other truck isn't using the MMM system is it?

deanR

You could also try upgrading to better connectors such as power polls.

hands without shadows

I would call castle too.

But just for fun, try pulling the red wire from the ESC-RX plug. That will disable the BEC meaning your receiver and servo are unpowered. To power them try a receiver pack like you run on your nitro. If it runs fine like that your BEC has issues.