Fix Jagged Cut Lines: Edge Precision and Smoothing

2026-08-17

Why sticker contours come out jagged or over-detailed, and how edge precision, smoothing and hole filling produce a clean cuttable path.

What jagged really means

A jagged contour has too many points following pixel-level noise. The plotter slows down, the blade chatters, and the finished sticker edge looks nibbled rather than smooth.

Edge precision

Edge precision controls how faithfully the path follows the traced mask. The default 6.5 keeps recognisable detail while smoothing pixel steps. Raise it for spiky artwork you genuinely want reproduced; lower it for photos and soft shapes.

Other controls that help

• Background tolerance: fewer leftover specks means fewer false bumps in the contour.
• Hole filling: removes tiny internal islands that would become pointless extra cuts.
• Morphological cleaning: shaves single-pixel spikes before tracing.
• A slightly larger offset hides remaining micro-detail behind the white border.

When to edit by hand

If one area still misbehaves, open the manual contour editor and fix it with the pen and eraser instead of degrading the whole path with global smoothing. Points are simplified on save, so hand-drawn segments stay light.