Recognition succeeds the first time but the frame lands in the wrong position after engraving, or results vary within the same batch. Tilted or loosely placed mirror-finish parts reflect light straight into the camera and cause localized overexposure.
Troubleshooting Steps
- Place the material in the center of the galvo scan area — edges have worse lighting and more distortion.
- Make sure the material sits perfectly level; a tilted reflective part causes localized overexposure.
- Clamp the material with clamps, hold-down plates or magnetic fixtures — never just lay it on the worktable.
- Thin, highly reflective parts bounce slightly at the moment of engraving; weigh them down or fix them with double-sided tape.
- Re-photograph and re-frame after any adjustment before starting the job.
