3D Printing Surface Finish
| Finish | Best For | Ra (μm) | Cost Impact |
|---|---|---|---|
| As-printed | FDM, SLS, DMLS | 3–15 | None |
| Sanded (320–1000 grit) | SLA, FDM | 0.5–2 | +$2–10/part |
| Vapor Smoothing | FDM (ABS) | 0.2–0.8 | +$3–8/part |
| Primed & Painted | All | 0.4–2 | +$5–25/part |
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