Feigao 9XL Failure - RC-Monster Forums

glassdoctor · 10.07.2007, 10:50 AM

Wouldn't this kind of damage be from impact, and have nothing to do with the voltage/load? I don't think a magnet can bust in half just from spinning itself.

Kinda like the LRP motors that suffer from the magnet coming loose from the shaft.. happens even on a 13.5 motor and I don't think there is even close to enough power for it to happen from sheer horsepower. I think it just happens from impact/shock load.

But who knows... that's just what seems logical to me.

I had an 8L go bad.. burnt windings. Then I ran the rotor from it in a Hacker C50 and that worked pretty good (very fast) but ran hot, and eventually got too hot and killed the magnet.

zeropointbug · 10.07.2007, 12:55 PM

I can't see impacts wrecking a rotor... otherwise alot more than your motor will be hurting; it would have to be a incredible forces to accomplish this. IMO

They are just crappy magnets.

Shark413 · 10.07.2007, 04:21 PM

I don't think the quality is very consistant regarding Feigao motors. I have one 8XL that I have been running in my brushless 1/8 scale buggy for over 60 hours total run time with no issues. I had another one come part in less than 30 minutes. Feigao motors are great for getting you into brushless on a budget but you bascially get what you pay for.

Magnet separated on my 8XL.

MetalMan · 10.07.2007, 10:54 PM

Quote:

Originally Posted by glassdoctor

Wouldn't this kind of damage be from impact, and have nothing to do with the voltage/load? I don't think a magnet can bust in half just from spinning itself.

Kinda like the LRP motors that suffer from the magnet coming loose from the shaft.. happens even on a 13.5 motor and I don't think there is even close to enough power for it to happen from sheer horsepower. I think it just happens from impact/shock load.

But who knows... that's just what seems logical to me.

I had an 8L go bad.. burnt windings. Then I ran the rotor from it in a Hacker C50 and that worked pretty good (very fast) but ran hot, and eventually got too hot and killed the magnet.

I don't think it's impact... My Savage which was running the 12XL that broke a magnet was run on the street ONLY, and there weren't any crashes that caused it. The truck was just driving, and then all of a sudden the motor sounded like there was something dragging inside.