Welcome to the Support Center, where you can get help through the following channels
There are 2 reasons for the problem:
1. Insufficient thickness of the top layer (number of layers)
A: Increase the thickness of the top layer (or number of layers) in the slicing software.
2. Low fill ratio
A: Increase the filling ratio in the slicing software.
3. Low extrusion volume
A: Increase the extrusion volume in the slicing software.
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