Electronizers smoking

Just did first test of my new robot centrifuge and all was going great, really destructive! But then there was a spark and smoke started coming out of the bot and I thought it was my lipo so ran inside to get something to through over it as I couldn't unplug the lipo. As I ran back to it it had stopped smoking but there were some sparks I went in to unplug the receiver battery as blade started to spin and then I noticed the wires coming out of the to the mixer had become all crispy and melted away on both of them. Does anyone know what happened or what I should do? I've checked and the other wires on the electronize seem fine, I should also mention I was using a giant cod mixer and the wires between the receiver and mixer were fine.

Also having taken them apart 1 resistor in both of them has gone black if that helps

It looks like I could re-solder the wires onto the circuit board, is there anything I should know before doing it? Also I don't want to re-solder it to find the same problem again, does it sound like it's an electrical problem or a problem with the wires?

I know I'm quite new here, but if your resistors died I think there was a voltage surge. The resistors will need replacing because obviously they are protective parts.

are you running a seperate BEC or one off the Electronize?

I don't think the 30amp Escs have becs so I was using a separate receiver battery

And thinking about it maybe there was a voltage sege but I don't know why there would have been one?

I would be more tempted to say it was your mixer, doubt it would be a surge if running a RX battery. Try a couple of old servos in the mixer see if that and a rx still work. How bad are the cables on the elctronize, you might be able to try them if you put them straight into the RX and not through the mixer.

Just tested and mixer works fine on servos, but had problems removing connectors going from electronize to mixer as the connectors had also melted together and got stuck to the mixer but managed in the end, can't test electronizers as there is a lot of uninsulated wires which I saw sparking when I returned to the bot, maybe they shorted across the wires? Although that shouldn't make both electronizers smoke? Should I give electronize a call tommorow to see what they suggest/ see if they will replace them if it wasn't my fault?

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Originally Posted by Max

Should I give electronize a call tommorow to see what they suggest/ see if they will replace them if it wasn't my fault?

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Judging by their recent attitude towards Eventorizon/Alex Botwright, they'll probably want nothing to do with it and will refuse to sell you any more.

let us know how you get on with them!

One minor possibility that it could be, but it's been YEARS since we've actively used Electronize is that if I remember correctly they are grounded through the base. I had to make sure that there was no way that the metal back of the speed controller's were touching a metal surface that could short anything out. We blew a few up before we worked it out about 7 or 8 years back. Might not be the issue, but if your running of an RX pack and the mixer/RX still work I would be tempted to think its more on an ESC problem. Hard to tell without pictures etc.

I had the 2 metal bits back to back and both touching my metal base plate so that could be the problem, I will call them today to see what they think/will do

thats goods knowledge for me, was about to mount my esc's on my metal base

I've mounted them several times on metal base and never had an issue. I did something similar a while back with an electronize. Can't really remember how it happened but after replacing the servo wire that burned out, it was the black one and soldering the tracks in my receiver it was fine. You didn't let the bec wires in the controller touch the chassis did you?

Funny you should mention that Grant, we had a similar problem with Bitza Mk1, created all sorts of shorts and what not, but mounting the metal base to more metal was a far to convince solution to pass up. So I just made sure everything was well insulated!

The base being earthed does explain a few things.

I spoke to electronize and they were very helpful and told me just to replace the wires which I've done and it now works. Apparently I may have had my receiver battery a different polarity to my main battery polarity but I'm not sure. Hopefully it won't happen again (or at the champs)