modify drive Floppy TEAC FD-55GFR

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Stefan_h
Posts: 12
Joined: Fri Nov 03, 2017 5:19 pm

modify drive Floppy TEAC FD-55GFR

Post by Stefan_h » Fri Nov 03, 2017 5:35 pm

Hallo
Ich würde gerne mit KryoFlux meine C64 Disketten Sichern.
Möchte Disketten beidseitig Kopieren, jedoch haben meine Disketten nur ein Index Loch.
Wie muss ich mein Laufwerk Modifizieren um die Disketten Beidseitig kopieren zu Können.
Verwend das Floppy TEAC FD-55GFR
Hoffe sie Können mir weiterhelfen
Bin da sehr unerfahren
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Hello
I would like to back up my C64 disks with cryo-flux.
Would like to have my floppy disk copy on both sides, but only an index hole.
How do I modify my drive in order to be able to copy the disks on both sides.
Use the Floppy TEAC FD-55GFR
hope you can help me
am very inexperienced

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mr.vince
Posts: 2061
Joined: Tue Oct 05, 2010 5:48 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by mr.vince » Sat Nov 04, 2017 12:11 pm

Stefan, such mods are not trivial. It requires some dremeling or at least re-alignment of the heads which only works with an oscilloscope and an analogue alignment disk (this alone is USD 150 these days).

I'd recommend finding a technician nearby.

brightcaster
Posts: 120
Joined: Fri Nov 08, 2013 10:48 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by brightcaster » Sun Nov 05, 2017 10:32 am

You may look at his video to get an overview about the work which is involved:

https://www.youtube.com/watch?v=WcqluH7dEj4

If you don't want to read both sides of the disk in a single pass and if you are willing to flip the disk, you only have to fool the index sensor or put a second one in place of the flip disks hole to keep the drive running...

David

Stefan_h
Posts: 12
Joined: Fri Nov 03, 2017 5:19 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by Stefan_h » Sun Nov 05, 2017 2:03 pm

Leider verstehe ich kein Englisch und habe Probleme mit der Übersetzung.

Ja ich hätte das gerne so, dass ich die Disk von Hand wenden muss. Ein 2 Index Loch an der Diskette möchte ich nicht setzen.

Würde gerne den index-Sensor täuschen, nur wie mache ich das ?

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Unfortunately I did not understand English and have problems with the translation.

Yes i liked so that I must turn the disc by hand. I don't want to index a 2 hole on the floppy disk.

Would like to replace the sensor, only the index How do I do that?

brightcaster
Posts: 120
Joined: Fri Nov 08, 2013 10:48 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by brightcaster » Mon Nov 06, 2017 8:04 pm

You problem is covered and solved here:

https://www.forum64.de/index.php?thread ... BCckseite/

Even if it is talking about the catweasel-system the solution is is also usable with the kryoflux! Ah yes and it is a german forum ;-)

David

brightcaster
Posts: 120
Joined: Fri Nov 08, 2013 10:48 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by brightcaster » Mon Nov 06, 2017 8:25 pm

As you use the FD-55GFR you may try this solution also:

http://www.oldskool.org/disk2fdi/FLIPPY.htm

Unfortunatley you have to run the google translator again ;-)

David

brightcaster
Posts: 120
Joined: Fri Nov 08, 2013 10:48 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by brightcaster » Sun Dec 10, 2017 2:07 pm

Page 9 to 13 of the attached link may also be of interest if searching for a simple way of faking the index signal on a flip disk:

http://retroport.de/resources/catweasel-usermanual.pdf

Regards, David

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IFW
Posts: 3077
Joined: Mon Nov 08, 2010 2:42 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by IFW » Wed Dec 13, 2017 1:11 am

Use only a proper, flippy-modded drive for backing up original C64 disks - do not use the fake index signal etc. solutions as you will be wasting your time and your disk surface as well in many cases.
If you are archiving normal user written disks, it does not matter though for 99.99% of the scene disks except for a few copy-protected scene disks... don't ask :lol:

brightcaster
Posts: 120
Joined: Fri Nov 08, 2013 10:48 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by brightcaster » Wed Dec 13, 2017 6:32 pm

Yes, of cause the index signal will never be alligned to the original position using theese fake methods. It just keeps the drive spinning! Which is enough in most cases...

Regards, David

Stefan_h
Posts: 12
Joined: Fri Nov 03, 2017 5:19 pm

Re: modify drive Floppy TEAC FD-55GFR

Post by Stefan_h » Sat Dec 16, 2017 6:51 pm

Unfortunately, i understand most of this is not correct, since my bad translation Translation Program.

Is there a way to convert my floppy, it is possible to archive a double-sided floppy disk. Or is there someone of this makes ?

Stefan

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