I wonder what RC Monster Mike will say to this.

I can imagine a hair-fine crack from the factory.
You could also get such a smooth crack by heat shocks, I guess. (like in glas) But this is out of question here.
I blame it on a manufacturing fault.


FYI:
The material looks and feels like cast iron. It's an alloy which also consists of significant amounts of Neodymium. Which is a Rare-Earth-Metal, so called Lanthanide. Pure Nd would be sensitive to oxigen. (I'm a Lab-tech here at the University of Berne, Departement for Inorganic Chemistry, and I work in the field of Rare-Earth-Metals, so I know a bit about these metals)
The magnet also has some sort of coating. Maybe to stop it from corroding??

This magnet is dead indeed. No possible way of fixing. As it cracked it generated new pole-centers, and as I pulled it out of the can, one part flipped around. So now it's impossible to get them together again.

I have seen this once before. The same thing happened. It also happened almost immediately (new motor). I also assumed it was a cracked magnet from the factory. The material is very brittle and a small hairline crack could easily go unnoticed. I suppose it could have been dropped at some point as well, landing on the shaft and causing the damage. Overall, I have had very few failures, but occasionally one must slip through the cracks (no pun intended!:)).

Okay, if it only happens, say, one time in several hundred motors, then I would be pretty mis-fortunate if it ever happens to me again, right? ;)

Fingers are crossed, anyway.

Right now the Revoxx runs on a dual brushed setup, can't wait for the new BL!

If it happens to you again, it would be fair to say that you are jinxed!

Have no fear - If it happens again to someone else on the forums - it'll happen to me - LOL

Hey HotnCold, what's the in her bikini? Is that a can of beer? Is that a photo you took?

Yep - its a can of beer - And no i didnt take that pic - i could only have wished to be there to take a pic of that - That sums up what fishing is all about......:)

yeah, now i see..

She's FISHING!

If you stare at it for a few minutes - she is doing exactly that - LOL

Yeah, for some dark reason, i didn't really notice the fishinggear she was holding..

Thanks for the head up..

Hey, look at that! She IS fishing! :)

Anyone care for a beer???? - LOL

someone say beer? lol
phil