Extrusion & Post
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PLA 3D Printing Rough Surface
Fenómeno do problema
PLA printed parts have rough surface layer lines, and the appearance and dimensional accuracy are not up to standard
Análise das causas
FDM layer-by-layer deposition inherently has high surface roughness; layer height, nozzle diameter and printing speed jointly determine it; post-treatment (polishing, chemical vapor) can improve it; during on-site troubleshooting, verify item by item according to this mechanism, and avoid blindly adjusting the machine based solely on experience
Solução
①Reduce layer height and optimize speed; ②Mechanical polishing or chemical vapor post-treatment; ③Evaluate other processes for high-precision parts; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusão principal
The PLA printing surface is an inherent process attribute; parameter optimization plus post-treatment are the two improvement routes; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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