More DPI is not automatically more detail. The useful resolution is constrained by the focused spot size and engraving strategy.
| CONCEPT | WHAT IT MEANS | WHY IT MATTERS |
|---|---|---|
| DPI | Dots per inch in the prepared image | Controls image sampling density |
| LPI | Lines per inch in the engraving process | Relates to line spacing and raster density |
| Spot Size | Approximate focused beam diameter | Sets a practical physical detail limit |
| Line Interval | Distance between engraving lines | Too wide can leave gaps; too tight can overlap |