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Re: To bang or not to bang



On Aug 31, 11:53 pm, "sfahey" <sfa...@a2central.com.remove-4jq-this>
wrote:
> It probably does the same thing as your Apple drive; it's just quieter about
> it, because it's likely a direct drive mechanism instead of a belt-driven one.

That would not affect stepping noise. A disk drive has two motors -
the spindle motor spins the disk and is either belt drive or direct
drive. The stepper motor (as has been described in another post) uses
either a spiral cam, a split metal band or perhaps a screw thread.