My geometry validation failed

Read the check

Open Check & output. The top line says either Geometry validated or N issues to fix before export. Each item has:

• A plain explanation of the problem.
• Fix: the suggested change.
• The affected parts — click a part name to select it on the canvas.
• A code, such as OPEN_PATH_ON_CUT_LAYER, and a link to the matching guide.

Errors (red) block export. Warnings (amber) are things to review. Notes (blue) are information.

Most common errors

Message mentions	Guide
Open path on a cut layer	Open contours
Overlap, outside part, self-intersection	Overlapping shapes
Too thin, too small, minimum feature	Details too small
Material cannot be processed	Material not suitable
Outside the sheet, larger than the bed	Design exceeds the bed
Text too long, no room, stencil	Text problems
Component dimensions, compartments, lid	Component settings
Same line cut twice	Double cuts

Other messages

• Nothing to make — the design has no closed outline on a cut layer. Draw one, or switch to home printing for a flat template.
• Image is not geometry — an image is a reference only. Trace it to get outlines.

Fix one error at a time; the check updates as you edit.