“Machine Learning Reveals Optimal Printing Parameters for Reducing Surface Roughness in Carbon Fiber PETG Fused Filament Fabrication”

https://pubmed.ncbi.nlm.nih.gov/38116221

This study used machine learning and 2400 measurements to show that adding short carbon fibers to Fused Filament Fabrication parts can worsen surface finishing, but a specific printing parameter combination can still result in low roughness when using 20% carbon fiber PETG filament.