3D print readiness report (local)

The summary cards are screening signals, not a single pass/fail verdict. A model can be watertight and still have thin walls, steep overhangs, or a poor bed orientation.

Manifold means every edge has two incident triangles and every vertex fan is connected. Watertight adds no boundary edges. Solid winding means the closed surface is consistently oriented outward. Large meshes above the topology cap show the edge checks as not computed.

The bounding box is compared with every listed nominal build volume in all six axis-aligned orientations. Reorienting can make a model fit but may add supports or change strength. Clearance is removed from X and Y only.

Downward faces are measured by angle from vertical: 0° is a vertical wall and 90° is a horizontal ceiling. Faces on the lowest model plane are bed contact, not overhangs. Supports, bridges and slicer behavior can differ.

One inward ray is cast from each triangle centroid and the first opposite hit becomes a local thickness sample. It is a bounded screening estimate, not an exact minimum distance, inscribed sphere, or slicer wall check.

Weight and time assume a solid, watertight model. Shell volume is surface area × walls × line width; infill fills a fraction of the remainder. Time is a throughput estimate with 15% overhead, not a sliced toolpath.

The PDF download is generated locally from the report layout. Print PDF opens the browser print dialog for the same report; the browser controls the printed output.

Wall thickness is limited to 200,000 triangles and overhang analysis to 5,000,000 triangles; topology analysis is limited to 2,000,000 triangles. The report shows which sections were skipped instead of silently downsampling.