What is How do I slice a STL file 3D model without sanding?

To slice an STL file for 3D printing without sanding, optimize slicer settings to minimize surface imperfections upfront. Use thinner layers (0.1–0.15mm) for fewer visible lines, smaller nozzles (e.g., 0.2mm) for finer details, enable retraction to reduce stringing, and try adaptive layer height for smooth complex curves. Beginners can start with "high-quality" presets in Cura or PrusaSlicer—they’re pre-tuned to cut down post-processing work.