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Disposing of a hard drive.



 
 
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  #76  
Old June 17th 18, 03:25 AM posted to alt.comp.os.windows-10
Yousuf Khan[_2_]
external usenet poster
 
Posts: 2,447
Default Disposing of a hard drive.

On 6/15/2018 12:47 PM, Bill Ward wrote:
Most hard drives seem quite indestructible. What is the best method of
disposal ? I do live on the coast with some 500ft high cliffs nearby.
Bill.


Just software wipe the whole disk and give it up to a recycler.
Ads
  #77  
Old June 17th 18, 02:03 PM posted to alt.comp.os.windows-10
Arnie Goetchius
external usenet poster
 
Posts: 58
Default Disposing of a hard drive.

Bill Ward wrote:
On 16/06/2018 02:55, Arnie Goetchius wrote:
Ant wrote:
Bill Ward wrote:
Most hard drives seem quite indestructible. What is the best method of
disposal ? I do live on the coast with some 500ft high cliffs nearby.
Bill.

Throw it into a volcano. :P

We have a local (NJ) recycling company that has a shredder which will shred your drive into small
pieces so it is completely unusable. They charge $5 per drive and you can stand there a watch them
do it.

Did they dispose of Jimmy Hoffa as well ?


I don't think they shred concrete :-)

Some kidnappers here once fed the victims body to pigs.
Bill.


  #78  
Old June 17th 18, 09:28 PM posted to alt.comp.os.windows-10
Bill Ward
external usenet poster
 
Posts: 63
Default Disposing of a hard drive.

On 17/06/2018 02:17, Paul wrote:
Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth
it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.


The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene


Another name for the function, might be "flux concentrator".

If it was Mu Metal, it would cost a fortune. Compared
to some other, less ideal materials.

** Paul

Strange I had not heard of Mu Metal for many years since I worked for an
aero space company.
Bill.
  #79  
Old June 17th 18, 09:34 PM posted to alt.comp.os.windows-10
Bill Ward
external usenet poster
 
Posts: 63
Default Disposing of a hard drive.

On 17/06/2018 02:09, Paul wrote:
Bill Ward wrote:
On 16/06/2018 20:39, Paul wrote:
Mark Lloyd wrote:
On 06/15/2018 01:22 PM, Bill Ward wrote:

[snip]

I've never managed to take one apart. Is there a Youtube video for
it? Bill.

I've never needed a video to remove a few screws, especially from
something that wasn't going to be reassembled afterward.


You'll need a video to get the Helium ones open.

And a can opener.

The lid is laser-welded to make it gas-tight.

Â*Â*Â* Paul

There was an article the other week that the younger generation are
unable to open a Fray Bentos tin of steak pie and it has had to be
redesigned.
Bill.


I thought you just swallowed those whole ?

I see in a news site article, the secret is:

Â*Â* "we have concluded that the cans require a robust 'cut from the top'
Â*Â*Â* opener rather than a 'cut from the side' opener.
Â*Â* "

It's a good thing when I was born, each of us was given a
"cut from the top" opener, in an effort to avoid starvation.
This is the one you want, because it has a bit of mechanical
advantage.

https://www.walmart.com/ip/Amco-407-...orted/15204013


Electric can openers are so 1960's. Even when the power
goes off... I can eat. I even have two different camp
stoves and fuel, for those "special eating moments".
I don't know though, how well a steak pie would do
on a camp stove. I suppose a microwave burrito wouldn't
be too happy either. (One of the guys at work swore
those were "excellent for breakfast".)

Â*Â* Paul

We bought an battery operated can opener a couple of years ago. It was
totally useless and languishes in a kitchen drawer.
When camping have you ever covered a hedgehog in clay and baked it over
a fire?
Bill.
  #80  
Old June 17th 18, 09:39 PM posted to alt.comp.os.windows-10
Bill Ward
external usenet poster
 
Posts: 63
Default Disposing of a hard drive.

On 17/06/2018 14:03, Arnie Goetchius wrote:
Bill Ward wrote:
On 16/06/2018 02:55, Arnie Goetchius wrote:
Ant wrote:
Bill Ward wrote:
Most hard drives seem quite indestructible. What is the best method of
disposal ? I do live on the coast with some 500ft high cliffs nearby.
Bill.

Throw it into a volcano. :P

We have a local (NJ) recycling company that has a shredder which will shred your drive into small
pieces so it is completely unusable. They charge $5 per drive and you can stand there a watch them
do it.

Did they dispose of Jimmy Hoffa as well ?


I don't think they shred concrete :-)

Some kidnappers here once fed the victims body to pigs.
Bill.


Before fitting his concrete waistcoat.
British gangsters the Kray Twins were reputed to have had bodies
disposed on under the A3 during its construction. They evidently
terrified Sonny Liston by taking him for a fast ride down it.
Bill.

  #81  
Old June 17th 18, 09:41 PM posted to alt.comp.os.windows-10
Bill Ward
external usenet poster
 
Posts: 63
Default Disposing of a hard drive.

On 17/06/2018 14:26, BurfordTJustice wrote:
Firing range.



"Bill Ward" wrote in message
news : Most hard drives seem quite indestructible. What is the best method of
: disposal ? I do live on the coast with some 500ft high cliffs nearby.
: Bill.


There is military one fairly near but no access for the public.
A race horse once got on to it and was never seen again.
Bill.
  #82  
Old June 17th 18, 09:56 PM posted to alt.comp.os.windows-10
Paul[_32_]
external usenet poster
 
Posts: 11,873
Default Disposing of a hard drive.

Bill Ward wrote:

We bought an battery operated can opener a couple of years ago. It was
totally useless and languishes in a kitchen drawer.
When camping have you ever covered a hedgehog in clay and baked it over
a fire?
Bill.


I can't say that I have :-)

I take it the hedgehog wasn't too happy about this.

I think I'd rather have "rabbit pie", which is actually
cooked in a casserole dish which is filled 4 inches deep
with "stuff". Where I lived, we used to get all sorts
of street vendors coming to the door, and one individual
would (infrequently) sell braces of rabbits at the door
(from snares). And we'd have rabbit pie. It's a lot
of work making rabbit pie, de-boning the meat and
so on. The rabbit meat is cooked before being
added to the pie and the pie crust on top gets baked.

Paul
  #83  
Old June 17th 18, 10:01 PM posted to alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Disposing of a hard drive.

On 06/17/2018 3:28 PM, Bill Ward wrote:
On 17/06/2018 02:17, Paul wrote:
Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth
it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.

The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene


Another name for the function, might be "flux concentrator".

If it was Mu Metal, it would cost a fortune. Compared
to some other, less ideal materials.

*** Paul

Strange I had not heard of Mu Metal for many years since I worked for an
aero space company.
Bill.


How about Permalloy?

Rene



  #84  
Old June 17th 18, 10:04 PM posted to alt.comp.os.windows-10
Nomen Nescio
external usenet poster
 
Posts: 825
Default Disposing of a hard drive.

In article
Bill Ward wrote:

Most hard drives seem quite indestructible. What is the best method of
disposal ? I do live on the coast with some 500ft high cliffs nearby.
Bill.


Soak 2-3 days in bleach.

  #85  
Old June 18th 18, 12:40 AM posted to alt.comp.os.windows-10
Ron C[_2_]
external usenet poster
 
Posts: 78
Default Disposing of a hard drive.

On 6/16/2018 8:05 PM, Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth it
for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.


The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene


All this talk of hard drive disassembly and salvaging strong magnets
talk motivated me to take an old drive apart. No problem at all pulling
the cover, but somehow I can't seem to find these magnets or even that
voice coil thingy.
Maybe someone can point it out on my drive?

Here's a cover off top view:
https://www.dropbox.com/s/8lhnybzho0sgh5m/Z_4665.jpg

Else maybe it's somewhere underneath:
https://www.dropbox.com/s/p6ogcj5h9tlhjpp/Z_4649.jpg

--
==
Later...
Ron C
--
  #86  
Old June 18th 18, 12:56 AM posted to alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Disposing of a hard drive.

On 06/17/2018 6:40 PM, Ron C wrote:
On 6/16/2018 8:05 PM, Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth
it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.


The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene


All this talk of hard drive disassembly and salvaging strong magnets
talk motivated me to take an old drive apart. No problem at all pulling
the cover, but somehow I can't seem to find these magnets or even that
voice coil thingy.
Maybe someone can point it out on my drive?

Here's a cover off top view:
https://www.dropbox.com/s/8lhnybzho0sgh5m/Z_4665.jpg

Else maybe it's somewhere underneath:
https://www.dropbox.com/s/p6ogcj5h9tlhjpp/Z_4649.jpg


Sorry Ron, I just don't recognize that drive at all, Maybe you could
give us a make and model.

Rene

  #87  
Old June 18th 18, 01:42 AM posted to alt.comp.os.windows-10
Paul[_32_]
external usenet poster
 
Posts: 11,873
Default Disposing of a hard drive.

Rene Lamontagne wrote:
On 06/17/2018 6:40 PM, Ron C wrote:
On 6/16/2018 8:05 PM, Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth
it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.

The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene


All this talk of hard drive disassembly and salvaging strong magnets
talk motivated me to take an old drive apart. No problem at all pulling
the cover, but somehow I can't seem to find these magnets or even that
voice coil thingy.
Maybe someone can point it out on my drive?

Here's a cover off top view:
https://www.dropbox.com/s/8lhnybzho0sgh5m/Z_4665.jpg

Else maybe it's somewhere underneath:
https://www.dropbox.com/s/p6ogcj5h9tlhjpp/Z_4649.jpg


Sorry Ron, I just don't recognize that drive at all, Maybe you could
give us a make and model.

Rene


The magnets are underneath the steel place in the
left part of the left-hand photo.

http://hddsurgery.com/blog/hdd-actuator

You can see the copper color of the voice
coil on the left, peeking out from underneath
the steel plate with the two major holes in it.
The magnets are underneath that steel plate,
in sandwich affair.

The drive on the right, uses a stepper to
position the arm. The drive on the right is
from a *much less dense* era. Using a stepper
is about as accurate as the mechanism on a
floppy drive.

Pick the part number off the ID plate on your
hard drive, and give us some numbers. Your
drive isn't an ST412 or ST506, as those use
a stepper translated to linear radial movement,
and the position of the arm actuator matches
neither picture above. The ST506 looks different
than both of those.

ST506 - linear actuator movement... Two motors.
No magnets.

http://images.computerhistory.org/st...allHDDs_P1.jpg

Paul
  #88  
Old June 18th 18, 02:06 AM posted to alt.comp.os.windows-10
Ron C[_2_]
external usenet poster
 
Posts: 78
Default Disposing of a hard drive.

On 6/17/2018 7:56 PM, Rene Lamontagne wrote:
On 06/17/2018 6:40 PM, Ron C wrote:
On 6/16/2018 8:05 PM, Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth
it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.

The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene


All this talk of hard drive disassembly and salvaging strong magnets
talk motivated me to take an old drive apart. No problem at all pulling
the cover, but somehow I can't seem to find these magnets or even that
voice coil thingy.
Maybe someone can point it out on my drive?

Here's a cover off top view:
https://www.dropbox.com/s/8lhnybzho0sgh5m/Z_4665.jpg

Else maybe it's somewhere underneath:
https://www.dropbox.com/s/p6ogcj5h9tlhjpp/Z_4649.jpg


Sorry Ron, I just don't recognize that drive at all, Maybe you could
give us a make and model.

Rene

Fujitsu Limited Model M2235AS [21 Mbytes] (circa 1987)
It was the hard drive on my first PC. G
~~
Sorry, I was just kidding around posting that.
Clearly no super magnet/voice coil technology in that drive..
--
==
Later...
Ron C
--

  #89  
Old June 18th 18, 02:39 AM posted to alt.comp.os.windows-10
Rene Lamontagne
external usenet poster
 
Posts: 2,549
Default Disposing of a hard drive.

On 06/17/2018 8:06 PM, Ron C wrote:
On 6/17/2018 7:56 PM, Rene Lamontagne wrote:
On 06/17/2018 6:40 PM, Ron C wrote:
On 6/16/2018 8:05 PM, Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels and
stickers. Takes about ten minutes to completely dissemble, worth
it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.

The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene

All this talk of hard drive disassembly and salvaging strong magnets
talk motivated me to take an old drive apart. No problem at all pulling
the cover, but somehow I can't seem to find these magnets or even that
voice coil thingy.
Maybe someone can point it out on my drive?

Here's a cover off top view:
https://www.dropbox.com/s/8lhnybzho0sgh5m/Z_4665.jpg

Else maybe it's somewhere underneath:
https://www.dropbox.com/s/p6ogcj5h9tlhjpp/Z_4649.jpg


Sorry Ron, I just don't recognize that drive at all, Maybe you could
give us a make and model.

Rene

Fujitsu Limited* Model M2235AS* [21 Mbytes] (circa 1987)
It was the hard drive on my first PC.** G
~~
Sorry, I was just kidding around posting that.
Clearly no super magnet/voice coil technology in that drive..


Well it kept me guessing, :-) I kinda figured it was a vintage drive
but back then I never opened up many drives so wouldn't recognize it anyway.

Rene

  #90  
Old June 18th 18, 03:04 AM posted to alt.comp.os.windows-10
Paul[_32_]
external usenet poster
 
Posts: 11,873
Default Disposing of a hard drive.

Rene Lamontagne wrote:
On 06/17/2018 8:06 PM, Ron C wrote:
On 6/17/2018 7:56 PM, Rene Lamontagne wrote:
On 06/17/2018 6:40 PM, Ron C wrote:
On 6/16/2018 8:05 PM, Rene Lamontagne wrote:
On 06/16/2018 6:45 PM, Bill Ward wrote:
On 17/06/2018 00:31, Wolf K wrote:
On 2018-06-16 19:28, Bill Ward wrote:
On 16/06/2018 05:42, NotMe wrote:
[...]
All the screws are not visible, some are hidden under labels
and stickers. Takes about ten minutes to completely dissemble,
worth it for the magnets.
The magnets must be buried so deep as not to attract anything.

Bill.

Shielded by the steel case.

Right.
Bill.

The 2 magnets, 1 on each side of the voice coil are glued to the 2
mounting brackets which are made of Mu-Metal which is a magnetic
shielding material.

Rene

All this talk of hard drive disassembly and salvaging strong magnets
talk motivated me to take an old drive apart. No problem at all pulling
the cover, but somehow I can't seem to find these magnets or even that
voice coil thingy.
Maybe someone can point it out on my drive?

Here's a cover off top view:
https://www.dropbox.com/s/8lhnybzho0sgh5m/Z_4665.jpg

Else maybe it's somewhere underneath:
https://www.dropbox.com/s/p6ogcj5h9tlhjpp/Z_4649.jpg


Sorry Ron, I just don't recognize that drive at all, Maybe you could
give us a make and model.

Rene

Fujitsu Limited Model M2235AS [21 Mbytes] (circa 1987)
It was the hard drive on my first PC. G
~~
Sorry, I was just kidding around posting that.
Clearly no super magnet/voice coil technology in that drive..


Well it kept me guessing, :-) I kinda figured it was a vintage drive
but back then I never opened up many drives so wouldn't recognize it
anyway.

Rene


On page2 here, it looks like a rotating motor somehow
moves the arm. The mechanism isn't clear.

https://ia800605.us.archive.org/25/i...chure_1985.pdf

Paul
 




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