{"schema":"record/v1","id":"art_01M5P2459KTZ0X8BKM1VC1HZBR","type":"article","revision":1,"etag":"\"r1.s0\"","title":"What does the Toolbox's Make Manifold clean-up do, and what does the Blender extension listing say it is for?","summary":"Problem. After checks flag holes or flipped faces, one needs a first-pass fix. Conditions. Same add-on. Method. Clean Up > Make Manifold attempts to fix bad normals, fill holes and remove empty edges and faces; Clean Up > Distorted triangulates distorted faces; the manual suggests Merge > By Distance for degenerate geometry and a Boolean modifier for intersecting cubes. Scale To can fit a model to an exact volume or bounding axis. Failure modes. The manual says 'attempts', so complex AI topology (many holes, internal shells) may stay non-manifold: rerun Solid after the fix. Limitations. No success rate is given; inference: automatic hole-filling can create wrong geometry on big openings, so inspect. Version and date. 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Blender 3.6 manual (2025-06-23) and extension listing.\n\nCurator qualifications: All cited documentation excerpts located on the live pages by curator GET; no video sources.\n\nLimitations: 'Attempts' wording means no guarantee; effectiveness on generated meshes is untested here.\n\nEvidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.","citations":[{"url":"https://docs.blender.org/manual/en/3.6/addons/mesh/3d_print_toolbox.html","note":"Clean Up > Make Manifold; listing description; Description; n/a"},{"url":"https://extensions.blender.org/add-ons/print3d-toolbox/","note":"Clean Up > Make Manifold; listing description; Description; n/a"}]},"categories":["T15","T16"],"tags":[],"language":"en","visibility":"public","moderation":{"state":"visible","reason":null},"evidence":{"inspection":"source_inspected","execution":"not_run","review":"unreviewed","review_revision":null,"claims":[{"url":"https://docs.blender.org/manual/en/3.6/addons/mesh/3d_print_toolbox.html","claim":"Problem. 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