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Old 2018.06.11, 08:38 AM   #1
jimbo_wa
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MB-010VE 2.0 ESC issue?

Hi, I've recently built up a bunch of parts into a working buggy, but am having major issues with the ESC/motors.

I have both the original 8500kv red motor and the ECO 5600kv blue motor. The blue motor will not even spin the wheels and the 8500kv motor cogs exceptionally badly:

https://youtu.be/ylDHgIA215o

Thinking that a FET has blown as both motors are struggling?

When not in contact with the ground the wheels spin fine and free - there's no binding in the transmission and I've swapped the clutch from 3 arm to 4 arm with no difference...

Nothing seems to be overheating and using the Scorpion programming cable (connects fine) settings all stay saved etc.
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Old 2018.06.18, 09:30 AM   #2
mleemor60
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Sounds like a low voltage situation.
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Old 2018.06.18, 09:33 AM   #3
jimbo_wa
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Quote:
Originally Posted by mleemor60 View Post
Sounds like a low voltage situation.
Cheers mleemor60, however it's the same when using a set of AAA 3.7v LiPo cells and dummies.

The ESC and motor gets so hot that it detached a couple of FETs from the underside of the ESC!
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Last edited by jimbo_wa; 2018.06.18 at 09:40 AM.
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Old 2018.06.18, 03:31 PM   #4
mleemor60
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Oh. make that over voltage. I don't think the board is any good beyond 6.6V. If you are running a pair of blanks and the 3.7's in series you may have your answer. Kyosho made a LIFe pack for mini Z use. I would look for a set of those with all the appropriate harnesses and another board too. You have probably let the smoke escape from the one shown in the photo.
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Old 2018.06.19, 02:40 AM   #5
jimbo_wa
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I'm not sure...

I also have a standard buggy with a Chilli brushed motor which is fine (mental) on the LiPo's and with standard NiMh (sane-ish). Previously using the same NiMh cells on the brushless resulted on lots of heat and major cogging.

None of the FETs are smoked (sight or smell) and I can get the ESC working again (temporarily) by holding the FETs back on their pads - they just melt off again when driving.

I think this must just be a faulty ESC, but for the cost of a new one and finding it in stock, (Japan seems the only option) I could replace all the electrics with standard hobby parts!
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Old 2018.06.19, 05:49 AM   #6
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What gear ratio are you pulling? Pinion tooth count? Try putting a MUCH smaller pinion on it and see if it changes anything. RC Kenon has plenty of parts and accessories for the buggies and they are Stateside.
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