That's one of the thinks I was thinking about. The fan is working BUT, it used to be very noisy, specially the first minuted after turning the printer on, and now it doesn't make that much noise anymore, although I feel it is spinning. The fan noise stopped around the the time the problems started, so it could be related.
How heat could be affecting this random movements?
The damage doesn't seem to be permanent, as the first few layers (a couple of them) are correct.
Should I try to change just the fan, or anything else should be changed? how could I test if it is really a heat problem?
it could have something to do with the temperature of the electronics board. Is the fan running underneath at your electronics?
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