matze79 wrote on 2020-01-29, 18:42:https://www.thingiverse.com/thing:3529607 […]
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https://www.thingiverse.com/thing:3529607
You can 3dprint them from TPU,
but be careful, don`t stretch them too much.
i can also print one for you if needed, a letter is dirt cheap to send 😀
Haha I got the dimensions from that I think, the belt in the picture is around 70mm diameter.
I've been trying to fix a couple of mine up as well since I don't even have one good Toshiba floppy drive to work with 2/3 toshibas at this point.
I ended up buying some random belts and thankfully 2 of them were able to fit:
20200129_193049.jpeg
The original belt had pretty much perished and just stretched til it snapped shortly after. The cheapo belts I bought (more than 1 arrived damaged) have a thicker diameter, the original belts are maybe 1mm wide and 0.5mm thick. These new belts are at least 1mm thick.
When I measure the new belt, it's around 95mm x2 so around 60mm diameter, which works out okay when the belt is stretched enough.
I just unscrewed the motor, placed the belt on it, screwed it back in, then wound the belt over the bearing/pulley.
To get it fully on there I pressed on the belt onto the floppy spindle near the pulley/bearing and just wound it round until it was fully on there.
Because the belt is so much thicker, twists are more of a problem so while holding the belt onto the spindle so it can't fall off, I pointed a small screwdriver into one of the holes to turn the spindle slowly a few times until all the twists had worked out.
It might be easier on yours, I damaged the spindle a bit while trying to dismantle the drive initially.
I also found that screwing the top plate on is necessary for it to read properly.
Once it was all back together - it's been able to read disks without any trouble, though I do wonder if this belt is a little bit too tight, the drive makes a trundling sound but works okay.
If someone has some TPE filament, maybe print some out and sell them since they're so hard to find through other means 😁
I tried to get an "EME279TC" drive working in the same way, but the belt being too tight stops the motor from spinning so that's no good.