Add 2D extrusion support for fabrication outputs#3

Merged

xarthurx merged 21 commits into

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feat-2d-extrusion-feature

Apr 22, 2026

Commits on Apr 21, 2026

feat(extrude): add module skeleton and deps for 2D→3D extrusion
xarthurx
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feat(extrude): add input validation for rank and thickness
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feat(extrude): add _build_binary helper with density/SDF threshold
xarthurx
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feat(extrude): add _trace_contours helper with boundary-closing pad
xarthurx
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feat(extrude): add _polygonize helper with flush-boundary snap
xarthurx
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feat(extrude): add _triangulate_polygon via mapbox_earcut
xarthurx
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feat(extrude): add _build_prism_mesh (caps + walls) via trimesh
xarthurx
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feat(extrude): wire extrude_2d end-to-end with helper chain
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test(extrude): add property tests for volume scaling and area tracking
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test(extrude): add EngiBench Beams2D fixtures and preprocess parity test
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feat(cli): add `xtf extrude` subcommand for 2D→3D STL export
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docs: add 2D→3D extrusion example to README quick start
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docs: record the canonical 2D extrusion print path in project memory
xarthurx
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fix(cli): support python -m xeltofab.cli invocation
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docs: record the module-invocation CLI fix in project memory
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docs(website): add extrude_2d API and `xtf extrude` CLI pages
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