Re: Profile Drive issues (of course)

On Jan 22, 12:05 pm, Jason Perkins <perkins.ja..._at_email.domain.hidden> wrote:

> The Widget disk has a brake on the servo... I'd guess to prevent the heads
> from moving around when the disk is transported. Picture here:http://compu85.homeip.net/stuff/lisa/Drive%20Cage/Break.JPG
>
> It's been a few years since I had my profile apart, I could be remembering
> incorrectly about the brake on the spindle.

Well, I don't claim to be a leading expert on ProFiles, but I have about 10 of them in varying states of repair and all have "stock" Seagate ST506 or 412 mechanisms (stepper granulatiry excepted). No brakes of any sort, just a Hall-effect sensor on the flywheel to provide feedback for the motor servo and a track-0 optical detector on the stepper motor shaft (also external).

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