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It looks like sand/water found its way in through the various small gaps in the case. No ESC I can think of will be immune to this unless the circuit is encased in a watertight box, or maybe a epoxy blob...
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ummmm...maybe someone was eating a really really greasy burger...with sand over the production line?:lol:
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Good point crazy.
Of course the inside of the case looks like someone sniffed sand then sneezed into it which is probably the failure. I just got back after a long hard run in the park today and the V2 with updated firmware hung in all the way. Someone was nice enough to leave me 8 mounds of dirt/rock mix all next to each other to jump so it was fun to say the least. The fan would come on but when the truck stopped it shut down every time in less than 10 seconds. |
I was thinking voltage ripple until I saw the pic of the insides!
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i bet thats some sort of circuit board protection that melted into a oily substance when it got that hot
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Looks like something (oil, water) got in the case -- sucked in by the fan. |
Ya, I've been using conformal coating for years & the only time I've seen it look like that was after the product had been dropped into dirty sea water.
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brian its not water...its oil or grease......I was running on pavement with phaltlines and it was only for about 10 or 15min |
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did your battery vent ? do they look good still ?
sounds like the stuff inside a lipo to me:yipi: j/k , was hoping someone would jump onboard with me on this |
could be capacitor electrolytic fluid...
check the caps to see if any has popped... just a thought... |
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I work at Moffett Field in CA. I have runway's for C5's JUST down the street. I keep trying to figure out who I talk to about making speed runs, or if I should just make one or two without permission, on a Naval Air Base. I've always wanted to visit Leavenworth this time of year.
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looks like a nitro car still ,, oil / crude everywhere ..
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im going to rip my v3 apart i remember feeling something oily on the case when it arrived and i bet by now it has settled.
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I wouldn't gear a 1.5d over 22/58 for regular use.. maybe a bit more for speed runs and such but if you are doing some serious bashing or racing that is the MAX. Racing is best around 16-19t/58 depending on your track size/layout. Typically being geared right on or just under 40 will result in the best lap times. I'll agree those packs coulnd't handle the amps you were pulling, and it resulted in the failure. Gear that thing lower.. specially considering the packs you are running.
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stum...do you run a new e-revo?????because i run a 1.5d(1515)on 6 cell in a new e-revo and im geared 14/68.....its really fast....(i guest).
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You are at about 45mph with that gearing on 6s, but your RPM's are at the max 60k line.. 22/58 on a 4s setup in the erevo is about 54mph on the top end.. considering the 4s 8000mah is the longest running config of any (no matter the voltage) due to the battery tray limitations I always stuck w/ 4s in it. (though a 5k 6s (2x3s) setup is pretty close, just more $$'s) 16/58 is nice for racing ~40mph on 4s (rpms at about 40k) |
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anyway if my temps still great i can run without problems......but my motor bearing have to survive:lol:like your said stum going close to the cut off voltage do not help to cool down a lipo but i never reach the cut-off...20 minutes of runtime max on each pack....i prefer to have more pack..instead drawing all the mah of the lipo....but more expensive:whistle:
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MA carrying enerland cells? Not likely.
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Zippy R may not be china made, but I can guarantee it isn't enerland.
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Couldn't really find an appropriate thread to ask so I chose what looked like the most active. So how long has it taken CC to send replacement v3's? I sent mine just over a week and a half ago. Just wondering when I can expect confirmation from CC for when they ship back the replacement v3. :neutral:
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well me too im waithing for my fifth mmmv3 |
Responce From Castle This Morning
Nick,
We were reviewing your V3 MMM repair and had a few questions. The set-up you are running appears to be a bit aggressive and may have contributed to the failure. This should not have caused the controller to fail, but it may be causing excessive stress on your battery or motor. We fear your motor may have been demagnetized during this process, which may have lead to the ESC failure. Again it should have not have failed, but if the motor is demagnetized, abnormal problems may continue. I would highly recommend sending the motor in to Steve Neu for inspection, just to be on the safe side. If you wouldn't mind sending me a run down of your set-up, we can make suggestions on how to prevent any future problems. We will be replacing your failed V3 with a new version, but we just want to make sure the set-up is proper to guarantee continuous operation. Please let me know if you have any questions or concerns. -- --- Thomas Porfert Product Specialist Castle Creations I wonder if this means a V4 is coming...is there anyway for me to test this motor for demag short of returning it to Nue? |
That would just be a typo when he said new version. There is no V4............
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I'm going to change my evil ways in the future and be much less agressive
so would a demagnitized motor cause a esc to go bad? |
The obvious answer would be..........yes :)
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ok just got off the phone with Odette at Neu...the motor is being shipped out tomorrow |
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u serious! damn...
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