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RC-Monster Mod
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03.21.2005, 10:02 AM
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.
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Site Owner
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Location: PA
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03.21.2005, 10:22 AM
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!:)).
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RC-Monster Mod
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03.21.2005, 10:27 AM
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!
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Site Owner
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03.21.2005, 04:43 PM
If it happens to you again, it would be fair to say that you are jinxed!
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RC-Monster Admin
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03.21.2005, 04:55 PM
Have no fear - If it happens again to someone else on the forums - it'll happen to me - LOL
Hows that "Hope and Change" working out for Ya???
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RC-Monster Carbon Fiber
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03.21.2005, 10:13 PM
Hey HotnCold, what's the in her bikini? Is that a can of beer? Is that a photo you took?
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RC-Monster Admin
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03.22.2005, 07:44 AM
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......:)
Hows that "Hope and Change" working out for Ya???
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RC-Monster Admin
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03.22.2005, 09:36 AM
yeah, now i see..
She's FISHING!
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RC-Monster Admin
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03.22.2005, 09:44 AM
If you stare at it for a few minutes - she is doing exactly that - LOL
Hows that "Hope and Change" working out for Ya???
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RC-Monster Admin
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03.22.2005, 09:48 AM
Yeah, for some dark reason, i didn't really notice the fishinggear she was holding..
Thanks for the head up..
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Site Owner
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03.22.2005, 10:23 AM
Hey, look at that! She IS fishing! :)
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RC-Monster Admin
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03.22.2005, 12:12 PM
Anyone care for a beer???? - LOL
Hows that "Hope and Change" working out for Ya???
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RC-Monster Aluminum
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03.22.2005, 07:47 PM
someone say beer? lol
phil
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