Good luck. Im yet to blow a vesc (knock on wood) I’d be pissed lol
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Yhe I was also thinking I never blew a vesc. 2 days later I see how fast it happens
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Think its repairable?
It’s the 6.6’s. I blew all 3 of mine in about 1 week each.
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No I think not 
The stones I found were not stones but parts from the vesc. Do you know which part it is. I think everything started just above the xt90
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Holy crap… yep that’s fucked.
Yeh mine were fine, this motors ask more, now not sure of that can be the reason. My battery is rather small 12s3p
Are the 7 little parts that you see still intact in the other vesc that blew. What are they?
These little bastards
Do you have a before pic of how everything was laid out.
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These Parts are ceramic capacitors (google “MLCC”). They smooth out the battery voltage for the VESC. One probably had in internal short from the vibrations and catched on fire.
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Same thing happened to me except I’m missing the whole corner.
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In the automotive industry they use a special type of ceramic capacitor which fails in an open circuit rather than in an short circuit and therefore does not catch fire.
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not a close one, but I have been using same setup and setting with my previous motors.
Thanks! Yeh apparently one vesc burn, antispark broken (no visible signs of fire ecc but doesn’t work anymore. Could it be the first cause for the short? I know they are not really reliable at 12s.
I immediately thought to your situation. Also the antispark is gone, while the other vesc seems to work just fine. Not sure if buy another 6.6 or move to like unity. I sold my spare 6.6 last week otherwise no doubt to try it again.
I’m gonna blame it on myself and get another one. Coat it in conformal and if it blows up again, I’ll give up on 6.6.
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I don’t think it’s a problem with using an anti spark switch. It probably just died because of the huge current that was flowing thru it due to the short in the VESC.
MLCCs tend to fail like that when the PCB they are mounted on are flexing/bending to much.
well I secured the vescs with velcro and added foam to damp vibrations. My battery is rather small 12s3p not such a huge current compare way bigger set up. So annoying… Thanks for the suggestions.
yeh I think I will switch to another type of vesc. I need to trust anyway. Otherwise I do not ride confident. Good that the other vesc looks fine, tested now and everything works. So probably the issue was the other vesc and not the antisparks.
If you r not gonna use it, wanna sell it to me for cheap? Shipping is gonna be terrible tho 