Support Fins: Breakaway Supports Baked Directly into the STL
An open-source browser tool adds breakaway “fins” to overhangs directly in the geometry, allowing the resulting model to be sliced with supports disabled.
The support is not generated by the slicer
Support Fins takes a different approach from conventional slicer supports: the support geometry is baked directly into the STL or 3MF model. On printfins.com, users can load a model, inspect overhangs and place support fins against suitable faces.
Automatic assistance and manual placement
The browser tool provides overhang analysis, orientation assistance and manual fin placement. Users can adjust material and fin parameters, layer height and support gap.
What goes into the file?
According to the project description, exported STL/3MF files contain geometry only. The fins therefore become part of the model rather than depending on a particular slicer profile.
Video and source code
Video demonstration: YouTube – Support Fins.
The source code is available on GitHub.
