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Trammell Hudson 7cdfabc80d almost there; slicing is a bit off
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README.md

Unfolded sphere

unfold reads a binary STL file on standard input and generates a SVG that contains the triangles "folded flat" so that they can be laser cut. It will output multiple groups in the SVG file that will need to be re-arranged to fit on the laser cutter bed.

More info: https://trmm.net/Unfolding_STL

This is a work in progress -- it is not yet feature complete. Among the features that it could use:

  • A better heuristic for finding the maximum non-overlaping set of triangles (Currently breadth-first search is used, with a slight preference for coplanar triangles)

  • Tabs for securing parts together.

  • Collapsing of very small or very thin triangles.

  • Marking mountain or valley folds.