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All of those reasons stated sound logical to me, the only thing is the motor is not de-maged at all. The rotor is as strong as it ever has been. I don't know how you would tell if there was a short since all of the wires check with connection to the other using a meter......or maybe it shouldn't do that........
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demagging the motor due to overheating will take out the esc because the motor continually demands more amps, more amps, more amps, until POOF!Mini Cat Racing USA
www.minicatracingusa.comComment
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I understand that, but this motor seems to be taking out esc's and it hasn't been overheated or anything of the sort. It just kills esc's.....well, it killed two. Since I have been running my 9xl no problems at all. I'm scared that if I put the 8xl back in then it will be poof number 3!!!demagging the motor due to overheating will take out the esc because the motor continually demands more amps, more amps, more amps, until POOF!Comment
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have you disassembled the 8XL yet? I had one were the magnet cracked in two and pulled massive amps, but it just puffed on of my lipos and and everything else was fine.Comment
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Yes, I have dissasembled the 8XL and it looks perfectly fine. As a matter of fact, I took the rotor out of it and put it in my 9XL that I ran hot and it de-maged after my 6s run with it several months ago. So my 9XL is using a rotor from the 8XL. I have the 8XL sitting on my desk with the back plate off.....and that's where it has been for a while now.Comment
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Could be just some defect in the motor that you can't see. Some internal wiring fault, just bad wire, maybe just some bad magnets or a combination, you know one built end of shift on Friday in a rush to get out. Seems like it is cheaper to replace a motor then ESC, maybe not worth the risk testing is 9xl is fine.Comment
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9XL is fine, and I'm not going to risk the 8xl. I think I might go to a 6s setup and maybe a 10XL. Just don't know right now. I just want to get a little more speed out of my 33" Fountain.Comment
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so you are using a 540xl? I read back through the thread but I may have missed the size of the motor. if you are using the 540 size motors, imo those motors are just not strong enough to do what you are asking of them especially in that size of hull. the esc may have took the abuse for awhile but the weakest link finally let go, why does the esc go on the first run of the day? no idea......Comment
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I will agree here. I have had a motor take out a ESC and seem fine, 1 run later the (new) esc fails.
Guess where that motor is now ??
HK motors and E-bays esc's are fine as long as you know what they are and when to bin them.
fwiw I have 3 Feigao S size motors that are near bullet proof. A few HK type XL motors of dubious qualitly and a pile of E-bay outrunners that are mere smoke generators !!
I also have enough alloy heatsinks taken off e-bay type esc's to make it worth a trip to metal salvage yard......nearly
See it....find the photos.....sketch it it....build it........with woodComment
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The 8XL is a Feigao......so I thought that it would not be the issue, but even "good" motors can have issues from time to time I guess. Since it was a Feigao, I hated to throw it away, but I definately will not be using it any longer.....other than a paper weight. I wish I would have bought it new so I could have sent it back in to be checked out. Anyhow, I'm in the market for another 8XL, or maybe a 10XL to run on 6s power.Comment
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