Hello, I saw today a video (https://www.youtube.com/watch?v=afUdR6c8ikY) which blow my mind a bit and there is all done what i where thinking you can not do...

1) How he can extract all 3 platters and rotate them around - I was thinking they have to stay precisely aligned to each other?!
2) He just scrub with the broken head-assambly some particles off - in my opinion it looks quite rough to me.

You can really handle platters that way?

The machine looks like the APEX Platter Extractor but i where thinking that can be used only for drives with one platter...

You can see a basic explanation here: Embedded Servo. You can expand your search from there.

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Blizzard Data Recovery

I started a log of platter transplants without alignment here
- https://www.recoveryforce.com/forums/vi ... .php?t=565

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Luke
Recovery Force Data Recovery

What blows my mind is the fact that "alignment" is necessary at all. An embedded servo by definition is self-aligning. AISI, it's just another case where the engineers have screwed up.

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A backup a day keeps DR away.

... I see - looks like for some drives the alignment is not important but how to check if it is or not? Is there a complete list or do I need to find it out on my own?

Apropos extracting platters - I found that tool: https://www.youtube.com/watch?v=w3bt5yNt3xY
Does someone know that one and is it useable?

Are there some Books or Videocourses which you could recommand me? I found one from Scott Moulton (myharddrivedied.com) but if the videos are the same as on youtube i am affraid I will not learn much...

Maddin ,
I Would Like To Answer Your question 1 by 1

1 : Platter Alignment is req in some drive and not in others ,Also you can work about firmware to solve alignment issue if you know how
2 :I did not like what erkin did to remove the stuck part ,A better approach would have been you use a fishing line or nylon thread and take the same apart .I was wondering how the poor apextoollab tool survived the ordeal
3 : To Pick And Place Method You Can Use Tool From Apextoollab , Chinese Tools That Use Dual Sided Tape on a Steel Tool To Remove Platters or Tape Method .

PS : I did a fantastic case today what i worked on for three days And involved much more work then you see in the video .Result success

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Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Well,
This Was The Chinese Tool i Was Talking About .The Platter Stand Is #@$@#%$ As WE Cannot Secure it Like We Can To HDDsurgery Stand And Hence When You Like To Rotate Platter It Will Fall Down

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Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Luke ,
I will Add Some Details Soon To Your List i Am Working Day And Night On These Damn Platter Cases These Days

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Regards
Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

... thanks a lot!