Suggestions anyone?

[Fishcharger]

Just installed a new Sensored Tekin 3000kv motor and Castle Mamba Max Pro ESC. Programmed and ran it today and it cuts out. I loose steering and throttle. If I hold it in my hand it runs and steers smooth every time but under load it consistently cuts out. Only have a 250oz torque servo in out so I don't think it's a Brown out issue. I'm new to the hobby and could use some help here, thanks.


Sent from my iPhone using Tapatalk

[Mountainsofbeer]

Well all the pieces are there just gotta figure it out.

If its cutting out completely like that maybe its a radio/transmitter issue is it calibrated and everything?
Most of my experiences with cutting out like that have been related to the radio. Or turning the truck on with a knob on the radio adjusted for steering or throttle turned all the way up etc. it doesn't like that. (I'm using rtr radio and transmitter )

Or it could be a wire getting pulled or a connection going bad under acceleration, its not happening in your hand but its happening when it moves kind of thing are the wires neat and tidy and the solder joints good?

bump

[Fishcharger]

Hmm good thought. As it works 100% in my hand which means the radio is close to the receiver. But once I drive it away from me then it starts cutting out.


Sent from my iPhone using Tapatalk

[JatoTheRipper]

Sounds like your typical weak Castle BEC issue. Buy and install an external BEC and that should solve you problem.

[turbodan13]

Originally Posted by JatoTheRipper

Sounds like your typical weak Castle BEC issue. Buy and install an external BEC and that should solve you problem.

+1 on the BEC issue. Even if it is only radio related, running an external BEC is never a bad thing to do.

[Fishcharger]

Shoot. I was hoping that wouldn't be the issue considering the money I just put down for it. From the sound things this is a classic Castle issue huh.


Sent from my iPhone using Tapatalk

[JatoTheRipper]

Originally Posted by Fishcharger

Shoot. I was hoping that wouldn't be the issue considering the money I just put down for it. From the sound things this is a classic Castle issue huh.


Sent from my iPhone using Tapatalk

Sadly, yes, it is. This is part of the reason I avoided Castle for years. Their newer ESCs have much better internal ESCs, but the competition had good BECs for years.

You should have gotten the Mamba Monster X instead.

[Fishcharger]

And ya nothing seems loose. My solder points look fine.


Sent from my iPhone using Tapatalk

[mikemcE]

OK can we stop Castle bashing ?
No , well then let's deal with the facts.
I have the same rig. Let's weigh it. Wow that is heavy, we need a servo that won't stall and increase the draw and cause a brownout.

As you can see I run that also. When I ran my savox1256 I had the same issues. I went to a 400oz servo , and a bec. The savox1231 will work, but if you run a big torque servo, run a separate bec and a Holmes bypass.
I'm running a Hitec on the Yeti and love the response


Hang up and Drive

[mikemcE]

Originally Posted by Fishcharger

Hmm good thought. As it works 100% in my hand which means the radio is close to the receiver. But once I drive it away from me then it starts cutting out.


Sent from my iPhone using Tapatalk

Watch your leds

If the ESC leds restart and chime you lost power or signal. Figure out what issue is.
If it's antenna or rx problem the led on the rx will go out.

If it's a brownout, the rx led will stay on, the esc will flash.

You have described two totally different issues



Hang up and Drive

[mikemcE]

My favorite combo, badass, only a Puller Pro XL is badder!


Hang up and Drive

[Fishcharger]

Nice. Ya I run the the exact same set up in my Bomber and I've had no issues.


Sent from my iPhone using Tapatalk

[Fishcharger]

Well installed a BEC and still having the same issue. Not sure to go from here.


Sent from my iPhone using Tapatalk

[mikemcE]

Time to check the Tx/Rx


Hang up and Drive

[JatoTheRipper]

Originally Posted by mikemcE

OK can we stop Castle bashing ?
No , well then let's deal with the facts.
I have the same rig. Let's weigh it. Wow that is heavy, we need a servo that won't stall and increase the draw and cause a brownout.

As you can see I run that also. When I ran my savox1256 I had the same issues. I went to a 400oz servo , and a bec. The savox1231 will work, but if you run a big torque servo, run a separate bec and a Holmes bypass.
I'm running a Hitec on the Yeti and love the response


Hang up and Drive

Nobody is bashing Castle. I mentioned the fact that their internal BEC has sucked in all of their old ESCs. That was true. Even the blindest of Castle fanboys can admit that.

But honestly, there were a lot of valid reasons to bash Castle in the past. They seem to be a different company and their products are much, much better these days.

Why do you take comments about Castle so personally? I don't understand it.

Originally Posted by Fishcharger

Well installed a BEC and still having the same issue. Not sure to go from here.

Sent from my iPhone using Tapatalk

Do you have a running video by chance? The sounds and sights help a lot when trying to diagnose a problem remotely.

[mikemcE]

I've always had good luck with all my Castle stuff. Never any bec issues on small servos with SW3 or MMP or MM2.


Hang up and Drive

[turbodan13]

Originally Posted by Fishcharger

Well installed a BEC and still having the same issue. Not sure to go from here.


Sent from my iPhone using Tapatalk

Just to double check, you did pull the red wire from the ESC's RX connector, right? With the BEC installed, power goes from the battery to RX via the BEC, not the ESC.

Unless you've wired it so the servo is powered direct from the BEC, and only receives signal from RX. But that's a whole other rabbit hole, so let's just stick with the "normal" BEC set up.

[JatoTheRipper]

Originally Posted by mikemcE

I've always had good luck with all my Castle stuff. Never any bec issues on small servos with SW3 or MMP or MM2.


Hang up and Drive

That's great. But lots of people have had issues. My stock, RTR Wraith would brown out with the Axial branded SW3...

[turbodan13]

Good info in both of these threads:

Electronic Problems? You probably need an External BEC

Definitive Radio, Power Wiring, BEC and Servo Threads-- RCC's Top Tech Threads!

[Fishcharger]

Originally Posted by turbodan13

Just to double check, you did pull the red wire from the ESC's RX connector, right? With the BEC installed, power goes from the battery to RX via the BEC, not the ESC.



Unless you've wired it so the servo is powered direct from the BEC, and only receives signal from RX. But that's a whole other rabbit hole, so let's just stick with the "normal" BEC set up.

Yes pulled the red wire on the ESC. I have the exact same set up in my Bomber and it works great.


Sent from my iPhone using Tapatalk