Top layer is smooth and Bottom layer is not and looks ugly - Improve your 3D prints - UltiMaker Community of 3D Printing Experts
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Any idea what causes this pilling and mess on the first layer? – Assembly and first prints troubleshooting – Prusa3D Forum
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Getting a smooth bottom layer of PLA - Improve your 3D prints - UltiMaker Community of 3D Printing Experts
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bad quality of bottom and top layer - Improve your 3D prints - UltiMaker Community of 3D Printing Experts
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How to achieve a fully filled in first layer – How do I print this? ( Printing help) – Prusa3D Forum
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