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Need help - Mac 512Ke floppy drive

What is the diameter of the necessary gear?  I see some 3010 gears on Ebay but it looks like they're about 16mm in diameter or a little more than 1/2 inch.

Ah, here we go.  I was just seeing collections of many sizes, but here's one made up of several 3010-2B gears:

http://www.ebay.com/itm/20pcs-New-3010-2B-Plastic-Gears-Modulus-0-5-Robot-Parts-for-Toy-DIY-Accessories-/161182886963?pt=Radio_Control_Parts_Accessories&hash=item25873fac33

Big diameter is 16mm.  Small diameter is 6mm.  Is that too big.  Above TK wrote that the gear is smaller than a dime, so I'm guessing it is too big....

 
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Diameter of the large gear is 9.4mm. Believe me, I looked all over the Internet and found several places selling these, but nothing in the exact size.

 
I have generated precise CAD for all four gears of the floppy drive. I am currently printing them in fine detail, and will be testing as soon as they arrive. I would let you all know if this works out the way I expected to.

 
A quick nerdy update to keep us all entertained  :)

As long as the parts can print with fine enough detail, this is going to work like a charm, and we will be able to rescue a lot of 'bad' Mac floppy drives/motors.  I heard from a few of you, that not only the smaller gear gets damaged over time, so now we will have a full set available to fix these floppy eject mechanisms....  if all goes well!

Heres some proof, a quick motion analysis I made of the parts I created (reverse engineered).  Everything seems like it would engage properly with clearances etc.

 
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You might want to check with some of the custom gear companies on-line and get a quote.  It might be cheaper to have 100 sets run off than to print 20 sets.   I don't know, but it's an avenue worth investigating, I think, unless the printed gears are already very affordable.

For example, when I needed a new gasket/seal for my vintage digital watch, I was able to send my last unused original to an O'ring company and they ran off 200 of them at less than $.50 each.   Of course, I don't need 200 of them...

For example, you might ask for a quote from these guys: 

http://www.rushgears.com/Replacement_Parts/

 
Does anybody have a donor floppy eject motor that they want to give away to me? I really only need the black plastic enclosure, I managed to break mine and I can't further test of the gears although it looks like ithey will work very well!

 
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