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psync

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  1. Thanks for the info! I'm in the USA too; I would be interested in sourcing a quieter replacement fan. I think there was mention that it was a 5V fan, but the schematics show it's hooked up to 24V (unless I read it wrong). Most likely the one I have has noisy bearings then.
  2. I looked at the schematic (open source, yay!) and I think the rear fan is on J20, and is not a PWM controlled one. I may have a fan with a bad bearing then, but I'd still be interested to know if that's the norm before I try to find a replacement fan to swap it out with. The machine is much quieter than the original UM, though the buzzing fan on mine overpowers the other noise at times.
  3. Hi everyone, I got my UM2 a few days ago, and I've noticed the rear fan on the back is quite loud. Is this expected? It doesn't seem as loud when a print is running, and I'm not sure if that is controlled by a PWM. The fan seems to be running all the time, even when my printer is idle, so I wonder if there's a short somewhere.
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