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| R2DG-31 failure in a 512Kb model |
Posted by: Tasagore on 2022-08-08 09:46:31
Hi
I've a Macintosh 512Kb and my floppy disk broke up last week, I've disassembled the floppy and the problem is a small gear inside the R2DG-31, is the one connected directly to the engine and since I guess it's impossible to get a new one, does anybody knows where can I find a R2DG-31 to replace it? Probably the gear is the same in R2DG-38 (at least in the pictures seems it) but anyway I can't find any 38 and I would prefer not to replace the entire unit.
Thanks in advance š |
Posted by: mg.man on 2022-08-08 09:58:44
it's impossible to get a new one On the contrary...
I've purchased a few - they work great and the seller is very responsive. |
Posted by: Tasagore on 2022-08-09 07:25:13
Thanks, I founded that but I'm not very confident with those printed parts.
Anyway I've ordered one, will see if it works. |
Posted by: pfuentes69 on 2022-08-09 07:30:16
Thanks, I founded that but I'm not very confident with those printed parts.
Anyway I've ordered one, will see if it works. I got those to repair a couple of units and they work... are a bit noisy, but they work. |
Posted by: mg.man on 2022-08-09 07:30:35
I'm not very confident with those printed parts. I'm sure you'll be fine. The important detail is that those are NOT 3D "printed" -- from the listing "it's been produced with a Mold and not with a 3D printer". So they are made especially for this purpose. |
Posted by: mg.man on 2022-08-09 07:32:12
are a bit noisy hmm... I've not had that experience. FWIW, I'm pretty sure these are the same gears @JDW reviewed and had good results with. |
Posted by: bibilit on 2022-08-09 07:47:37
are a bit noisy, but they work. they work fine, not noisy all the time, so probably a tolerance issue in the moulding. |
Posted by: cheesestraws on 2022-08-09 07:50:19
Thanks, I founded that but I'm not very confident with those printed parts.
I've installed several new ones and they've worked fine. They are a tiny bit noisier, but not meaningfully so, at least in my experience.
Bear in mind, though, that the original gears are weaker than the surrounding ones deliberately, to avoid burning out the motor if anything gets stuck in the drive, a bit like the mechanical equivalent of a fuse. So you do need to be a bit more careful about getting stuff stuck in there than you otherwise might. But compared to being completely useless, it's a big upgrade. |
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