File formats

File formats

Use the workspace Export button for model exports. The implementation goes through the server Build123d / OCCT path, so exported geometry matches the authoritative kernel result.

CAD exchange

  • STEP import: supported from the documents page and imported-feature flow. Kerf stores imported bytes in the blob store and tracks source units when detected.
  • STEP export: supported for the active part and whole document.
  • IGES export: supported for the active part.
  • IGES import: kernel-side import exists, but the API route and drop-import UI are not wired yet. Treat IGES import as a follow-up.

Mesh and visual formats

  • STL export: supported for the active part and as a batch ZIP.
  • 3MF export: supported for the active part and as a batch ZIP; the print-prep panel can send this to slicer workflows.
  • OBJ export: supported for the active part.
  • glTF export: supported for the active part.
  • PNG viewport capture: available from the Export dialog for visual sharing.

Kerf can preserve imported mesh-body blobs for STL, OBJ, and 3MF when they appear in a document, but editable B-rep workflows should prefer STEP.

Drawings

Drawing sheets export DXF and PDF from the drawing view. These are separate from the model Export dialog because they operate on sheet geometry rather than 3D bodies.

Deferred

DWG is deferred. Export DXF or PDF from Kerf and convert downstream if a supplier requires DWG.