Quote:
Originally Posted by Bob Steele
The "fumes" are just air....
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Not exactly. Air is mostly nitrogen and oxygen with some other gases, while the contents of a can of "Dust Off" is not, instead being a mix of non-flammable gases (with virtually no oxygen or nitrogen).
The permanent magnets surrounding the CIM motor, and in contact with the case, are a ceramic material which, like some glass materials, can shatter when exposed to a very rapid temperature change. So just dropping a hot CIM into liquid nitrogen will case irrepearble damage to the CIM.
That being said, it isn't all that fragile and most cooling methods available to an FRC team are fine - just take it a little easy, OK?
