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While walking the corridors to my university office, I ran into a treasure trove, piled in the hallway as discarded old junk. One of the gems was an Apple Disk II floppy drive. I seized it, nostalgia pulsing in me, and lovingly breathed life back into it. It is again a disk drive of sorts. The transformation into a USB enclosure was very simple, but still a somewhat lengthy process.

Step 1: Gut It.

This was a broken unit, but I still felt awful gutting it. Once I started, I felt nostalgic again when I read the date on the circuit board, and that made me feel better. Unfortunately, I didn't photograph the demolition process, so use your imagination here. (Here's a link to one with the case open.) What's shown is the box open, gutted, and a portion of the bottom aluminum cut off to give us more space. I had to cut that portion of aluminum off because it was raised and held the stepper motor that spun floppy disks. The two leads you see are from the original red activity ("in use") LED on the bottom left corner of the front of the unit.

You want to remove everything, but very carefully. There are a lot of re-usable components here, including creative decorations for some of your other projects. We want to preserve the floppy drive door action mechanism as much as possible. Luckily, that's easy. But unfortunately, I didn't photograph it and can't find a suitable image on the net. You will find it in successive steps, though already attached.

Step 2: Protect the HDD Electronics.

I wanted to protect the drive electronics, so I screwed on a thick-ish sheet of non-conducting transparent plastic I had on hand. You can use a cut anti-static bag or a thin piece of wood, too, since I don't believe heat in this area will be too much of a concern, especially since there's lots of room, ventilation, and metal in the enclosure. If you're worried, you can pretty easily add a small fan using a molex Y-connector.

Step 3: Connect It Up.

I used a USB to SATA & IDE adapter kit (Scythe Kama Connect). Unfortunately, I wasn't able to to fit the hard drive and the adapter in-line, so I had to buy a 4" IDE extension cable.

The kit comes with a molex Y-adapter cable so that you can provide power to the adapter and your IDE hard drive from the same source. Attach the molex power cable and the USB cable to the adapter. Then attach the IDE extension cable to the adapter. Finally, attach the IDE cable and other end of the molex Y-adapter power cable to your hard drive. If you're using the same adapter kit it should end up looking like the last photo.

Step 4: Insert Into Case.

Now carefully insert this group into the case. I'm relieved to report that hard drive won't fall through the gaping hole in the aluminum.

The Disk II has a nice cable-management clip which used to be for the colorful original ribbon cable. Use this for stress relief on the USB cable. I wasn't able to angle mine to use it for the power cable as well. But as it turns out, we have a nice fit with the top on, without smashing cables.

Step 5: Re-attach the Floppy Door.

The floppy door should now be re-attached by adding the two screws shown brightly on the left side of the second photo. I had to use small stand-offs (first photo) to raise the door a tiny bit, so the door could close without smashing stuff.

When the door is closed, it should not be pressing down at all on the adapter+HDD combo. Mine just fit so perfectly that it prevents the IDE extension cable from lifting the USB adapter.

Notice the ridiculously simple door mechanics. Also notice how the door lever is eating up a lot of important space, right in the middle. If you didn't care about using the door, you could detach the plastic part of the door using the two screws on the right side, and then glue it in place. You would then have loads of extra space--probably enough for a 2nd hard drive.

I have a plan for the door, though, so I'm leaving it alone.

Step 6: Close It Up.

Be sure to attach the cable-management/stress relief clip, and then put the cover back on.

Make sure both the power and USB cables exit through the little notch at the back, as in the photo. The cable on the left is for power, and has an integrated switch. That's what I'm using to switch power to the disk and adapter until I re-mod the case to use the door as a switch (see last step for the plan).

Step 7: Test It.

Attach it to your computer and--with fingers crossed--see if it works. Mine does. Whew.

Step 8: Future Mod Possibilities.

Here are some things you can do to make this project better.

You can insert a knife switch near the front of the door, though you may have to get creative to find room for it. This can be used to control power or a small LED light show circuit.

You can substitute a 2.5" laptop drive for the 3.5" drive. Then you'd have plenty of space for the knife switch. In fact, it might then obviate the need for the IDE/SATA extension cable we used in step 3. (I haven't verified that it will fit in-line, so caveat lector.)

You can wire up the original "in use" activity LED to blink when the HDD is in use. Here's an example site explains in detail how that can be done:

http://hachi.kuiki.net/projects/ide-led/

Finally, you can add another molex Y-connector and a fan, to keep the interior cooler.
<p>Cool project. I like the retro look.</p>
where did you get the 4 inch ide extension?
I got it from a place called <a rel="nofollow" href="http://www.cablesonline.net/">Atlantic ComputerTech</a>.<br/>In retrospect, I'd advise a 5&quot; cable or even 6&quot; as 4&quot; is a little tight.<br/>
Nice! Is the drive screwed-down or otherwise fixed in place? L
Thanks! No, but it's kept from moving about by the door and cables. I keep mine in the house, so it doesn't need anything more. But if you will be transporting yours regularly, you should consider securing it better. And perhaps using a 2.5" drive, since those are much more rugged.
OK. I like the "Drive 1" label, I don't suppose there was a "Drive 2"? L
I assume you mean in the hallway. Nope, just this one drive. I wish there was more, though. The boxes are really sturdy, and so if you have two or three, you can use them as platform bases for, say, a printer or monitor.
I think they were originally intended to prop the monitor? L
Yes, i love this idea! We did something similar at work. The enclosure is maybe just big enough to fit in a two drive raid.
There's plenty of room if you're willing to sacrifice the door. In that case, you can ditch most of the aluminum cage entirely, and get even more room. A really nice alternative mod for this case could include a 2.5" HDD and a slim profile trayless sliding DVD burner. The USB->IDE/SATA adapter I'm using supports the simultaneous use of both IDE and SATA, so no extra hardware is needed.
Very nice instructable! I featured it on <a rel="nofollow" href="http://www.dailyhack.net/2009/02/two-retro-apple-disk-ii-hacks.html">The Daily Hack</a>. Keep up the great work!<br/>
Thanks for the honor!

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