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OrcaSlicer running entirely in the browser

The 3D printing slicer (and preFlight) compiled into a complete web build with a lot of help from Claude.

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Credits

  • HN submitter thederf Source ↗

Earliest dated source: 4 Oct 2026

The full story

With a lot of help from Claude, the author got the OrcaSlicer and preFlight 3D-printing slicer engines running entirely in the browser as WebAssembly. The build has the full feature set: painting, slicing, assembling and printing models, with a mobile-friendly interface. It also supports direct printing to many printers (often via a CORS proxy) and basic TinkerCAD-style modelling.

How it was done

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Sources

From the maker's own write-up or code. We summarise what they report; we haven't tested it ourselves.

  • Hacker News: Show HN: A complete web build of OrcaSlicer for 3D printingBlog or write-upcubbycad.com
  • Hacker News discussion (1 points)Forum threadnews.ycombinator.com
    HN submitter: thederfPosted 4 Oct 2026

    The Show HN post with a link to the web slicer.

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