3.5" floppy failure mode? Hub not attched to media.
cclist at sydex.com
Fri Feb 27 11:05:11 CST 2015
On 02/27/2015 06:17 AM, John Foust wrote:
> At 06:45 PM 2/26/2015, you wrote:
> You're not concerned about the tolerance and re-centering issues?
> You think the cookie will fit back on the hub precisely enough
> that it'll be aligned with where tracks were before?
Not so much. A 3.5" floppy is recorded at 135 tpi, where an
80-cylinder 5.25" floppy at 96 tpi. On 5.25" Drivetec floppies, the
cylinder density is double that--192 tpi.
Now consider the hub-clamp mechanism of a 5.25" drive. I suspect that
with a bit of care, one can probably get things right most of the time.
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