Need response from a Castle tech for MMM question

[BrianG]

So, that brings the tally of reanimated MMMs up to three now? Mine, Joeling, and now Truckbasher.

[TruckBasher]

technically its 4 now, Joe ling both modded a V1 and another V2

Originally Posted by joeling

I have done the deed & the Monster lives :



Regards,
Joe Ling

on this pics i only see the parts remove, but should i have to place some jumper?? and were connect the external BEC power wires???

And please, tell me if on this pic, it was the V1 or V2??

Tank you

[TruckBasher]

Originally Posted by BrianG

Made up a little diagram showing the UBEC hookup. It's a little different than most setups since the output of the UBEC must be fed back into the ESC, but that's about it. Oh, and I used the ESC input power solder points for the UBEC input.



Other mods done just for the record:

- Cut the case so the heatsink has better passive airflow

- To protect the circuits, I installed 1/8" thick foam pad strip along the motor and power wire solder points inside the case.

Here is BrianG's wiring diagram....only need to short is the switch wires as it doesnt do anything....

Oh and that photo from Joe was V2....mine is V2 also only a bit smaller....

EDITED:
ohh and dont forget we do it at our own risk

Originally Posted by BrianG

Success!

Removed the components Patrick suggested and it works like a champ.



The MMM switch is useless now, switching it off did nothing. So I bridged the contacts at the PCB (did this after the pic above).

And now, I can use the Castle Link without any mods, nor do I need batteries hooked up to the ESC. I don't know if this mod makes anything run longer or better, but I feel better with my V1.

BrianG, on this pics, i can see the removed parts, the bridge on the switch wires, but were is the brown wire goes on the Rx????

And after the mod, i know you run an external BEC but did you remove the red wire in the Rx plug?????
Do you have to route the external BEC output wire to power the ESC????

Please i need clear expanation, and tell me if i can do this on the V2.

I'am french and sometimes i've somes difficulties with english explanations.

Thank you

Originally Posted by TruckBasher

Here is BrianG's wiring diagram....only need to short is the switch wires as it doesnt do anything....

Oh and that photo from Joe was V2....mine is V2 also only a bit smaller....

EDITED:
ohh and dont forget we do it at our own risk

OK thank you TruckBasher, you reply to my question, so the brown wire (or black, it's the same thing) on the Rx lead is simply remove, not use anymore??

So you give me the warrentie that i can do this on the V2 as well as the V1??

And another thing, should i mod it as soon as i'll recieve it or should i,am better to run it and wait it died???

And no worries for the warenties, if it died after the mod, i'll simply wait until CC solve their problems bofore to order another one, or maybe change the 3 caps on my MM for 35V rated caps and try it on 6s.............................

[BrianG]

Originally Posted by david lamontagn

BrianG, on this pics, i can see the removed parts, the bridge on the switch wires, but were is the brown wire goes on the Rx????

And after the mod, i know you run an external BEC but did you remove the red wire in the Rx plug?????
Do you have to route the external BEC output wire to power the ESC????

Please i need clear expanation, and tell me if i can do this on the V2.

I'am french and sometimes i've somes difficulties with english explanations.

Thank you

I removed the ground wire on the throttle because the input power ground is the same point as the throttle ground, so that means fewer wires. If you look at the wiring diagram, you can see I'm picking up full battery power directly from the ESC power solder points.

[TruckBasher]

IF you did the wiring correctly (Brian's wiring diagram), on the MMM no black/brown was cut but this is only true if you directly soldered the black wire from the UBEC input to the MMM and the black wire output of the UBEC to the RX plug. This is a "ground" wire so basically it is the same.

If you are not sure about the wiring you can go over the mod but dont do anything on the wires going to RX. Then connect the UBEC directly on the RX as you would normally do....leave the red and black/brown as this will back feed the MMM Brain

edited:
My response was late

[joeling]

I see where your confusion is now. The Brian's diagram shows brown wire as the signal wire while in reality, the signal wire on the MMM is orange. The black ground wire in Brian's diagram is actually the brown wire on MMM. Confused now ?

Regards,
Joe Ling

Thank you to BrianG, TruckBasher and JoeLing for your PM and your help, so if you have great results with your mod V2, i'll be more confident to run mine .

But i need to know if i'am better to mod it as soon as i'll recieve it or wait until it died. But if i wait, i risk to have a fire on the ESC, so the mod will be impossible.

And after your mod it, should i run a fan on it power by the Rx or you can run it without fan??

OK i'll did exactly what BrianG did on his drawing, solder the red/black input BEC directly to the main connector on the ESC.

[TruckBasher]

IMO the burn MMM are caused by a totally different issue but just my opinion. I did not do any mods on my fan I let the brain power it when needed....it wouldnt hurt to run it via UBEC but it will only add more wiring than needed..you can also do the no fan mod of Brian

Ho, if my solder skill was not on pair with BrianG one can i simply solder the red/black input BEC wire to the 6.5mm connector on the input batterie wire on the ESC side??

Originally Posted by TruckBasher

IMO the burn MMM are caused by a totally different issue but just my opinion. I did not do any mods on my fan I let the brain power it when needed....it wouldnt hurt to run it via UBEC but it will only add more wiring than needed..you can also do the no fan mod of Brian

What is this No fan mod??

[BrianG]

Originally Posted by david lamontagn

Thank you to BrianG, TruckBasher and JoeLing for your PM and your help, so if you have great results with your mod V2, i'll be more confident to run mine .

But i need to know if i'am better to mod it as soon as i'll recieve it or wait until it died. But if i wait, i risk to have a fire on the ESC, so the mod will be impossible.

And after your mod it, should i run a fan on it power by the Rx or you can run it without fan??

Well, it depends. If you're racing and can't afford downtime due to a bad BEC, then mod it right away. If you're just bashing, then you don't lose anything by waiting until if/when it does go bad. You may luck out and never have a problem.

Either way, this mod ONLY addresses the BEC issue. It will NOT affect if the ESC decides to smoke or not - that's usually caused by something else entirely.

Also, be aware that if your external BEC blows for whatever reason, it will affect the ESC too (since the brains run off the BEC). We are assuming that the external BEC will run perfectly, but some do develop problems.