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This is a common problem when it's the very very last few layers but you have so many layers to go when doing the girl's face. I would check that the fans are working. And maybe lower the air temperature. You want 100% fan with PLA. Not the bottom layer but by the 5th layer the fans should be at 100% to cool the layer below before the next layer.
In addition I would print this "vertical" because you will get much better resolution on the girl's face if you print in the other orientation.
But if you print this vertical it looks like she has a pony tail printed last and that might have the same issue unless you also print a tower next to her for cooling purposes - when it prints the tower the model can cool for an extra 4 or so seconds (that's all it usually needs).
It's also possible the temperature is off on your core so you could try another AA 0.4 core.
But first and foremost check that the fan is working - what I see here is what I would expect if one or both of the 2 side fans were broken.
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gr5 2,069
This is a common problem when it's the very very last few layers but you have so many layers to go when doing the girl's face. I would check that the fans are working. And maybe lower the air temperature. You want 100% fan with PLA. Not the bottom layer but by the 5th layer the fans should be at 100% to cool the layer below before the next layer.
In addition I would print this "vertical" because you will get much better resolution on the girl's face if you print in the other orientation.
But if you print this vertical it looks like she has a pony tail printed last and that might have the same issue unless you also print a tower next to her for cooling purposes - when it prints the tower the model can cool for an extra 4 or so seconds (that's all it usually needs).
It's also possible the temperature is off on your core so you could try another AA 0.4 core.
But first and foremost check that the fan is working - what I see here is what I would expect if one or both of the 2 side fans were broken.
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