Originally Posted by
JatoTheRipper
I purchased a Castle Mamba Monster X and Tekin ROC412 3100kV for my Axial Bomber kit. With any kind of speed it's an awesome setup. But when trying to crawl I'm getting bad cogging. See the two videos below.
The MMX cogs on both the Tekin ROC412 installed in the Bomber as well as a Yeah Racing 21.5T motor that I bench tested. I tried replacing the sensor cable and LiPo battery. I also unplugged the servo to ensure nothing else was drawing power. After speaking with Castle they concluded that something was wrong with the ESC so they sent me a replacement.
The replacement MMX has the same cogging on the same two motors. I even tried a new transmitter and receiver, but nothing stops the low speed cogging.
Castle stated I should not have any cogging with the default settings and that I shouldn't have to "tune" out the cogging with software settings
I've had nothing, but dislike for Castle in the past, but I decided to give them a second chance. Before I give up on Castle and write them off for good, does anybody have suggestions on how to fix this cogging?
I had this same issue with my Bomber with the exact same setup. Buttery smooth in reverse and cogging like a mofo crawling forward? I figured out the sensored motors don't like to run in reverse efficiently with the MMX for some reason?!? So I flipped my ring gears around front and rear to correct the motor direction to normal instead of reverse and bam, no more cogging!!! :-)