MM/Feigao cogging

[MetalMan]

I hope the MGM doesn't burn out on you! Their CS isn't really good at all...

The braking issue with the MGM controllers is gone. Earlier I hooked up my MGM airplane-style 120amp 12-cell ESC in my Revo, and was driving around a bit (the MM fried some FETs). It was smooth, but it started off at a rather high speed, definitely faster than the MM. But going from a high throttle to neutral, and then to a low throttle yielded the results I wanted (and am used to), so the braking issue is definitely gone.

MM, thanks. I'm glad to hear that. The Compro looks promising, if you can believe the published specs. Smoothness was a concern of mine. They claim that there are a butt load of "steps" in the throttle control department. I know that it's going into a truggy, but my son and I do clown around with going over big rocks and logs. I hope that the Compro won't be too abrupt on take offs. That's why I didn't even consider the BK. My buddy got one of those as a part of his kit from finedesign and I didn't like it at all.

Well, I guess I'll see. If the Compro doesn't work out, I suppose I could sell it and then get the Quark and just deal with the heat.

Just in case anyone was keeping up with this, I just got in a bunch of and tried a 9T, with the 46T spur with the bowtie MTRs. It very rarely cogs now, and even when it does, it's no big deal. It only does it for a split second and then goes. Apparently, the MM had a problem with my setup and the heavy truck with the large 40 series tires. Every time I reduced the gear ratio and reduced current draw, the cogging got better.

Perhaps the MM in a truck needs some massaging on 4S to keep the current draw down. I wonder if going with something more than 4S would have fixed the problem.

In any case, I'm going with the Compro. I hope that it will open up some doors to taller gearing.

[BrianG]

5s with a higher turn motor would help (less current) as long as the MM holds out at that voltage.

This seems to prove that the current requirements of the 7XL in your setup was asking to much of the MM.

Brian, I think you are right. It was true of the 8XL that I put in there too. Oh well, I still have four MM escs and do love them, but I think that I'm going to stick to controllers better suited to the task.

If the MMM was out, I think I would have bought that without knowing anything more about it than that it was designed for large scale and that it was made by Castle. The MM has been impressive for an esc designed to run in 1/10 scale with much smaller motors.