Export Stl

During export, the script checks for common printability issues:

• Non-manifold geometry - Mesh has holes or edges shared by more than 2 faces
• Self-intersecting geometry - Parts of the model overlap incorrectly
• Degenerate faces - Zero-area triangles that can cause slicer issues

If issues are detected, the export still completes but warnings are shown with guidance on how to fix them.

Example

After phone_stand_003.scad looks good in preview:

.claude/skills/export-stl/scripts/export-stl.sh phone_stand_003.scad

Output:

--- Geometry Validation ---
STATUS: PASSED - No geometry issues detected
- Mesh appears manifold (watertight)
- No self-intersections found
- Ready for slicing

Workflow Integration

/openscad → /preview-scad → /export-stl
                              ↓
                     Geometry validation
                              ↓
                     Ready for slicer

Fixing Common Issues

If validation reports problems:

• Non-manifold: Ensure all shapes are closed solids, avoid 2D shapes in 3D context
• Self-intersect: Use union() to properly combine overlapping shapes
• Degenerate: Check for very thin features, increase $fn for curves

Notes

• Binary STL is recommended (smaller files, faster to process)
• The export performs a full render, so complex models may take time
• Triangle count is reported for estimating slice complexity