According to Adafruit, a new tool called Magma is tackling 3D printing's persistent weakness: brittle layer bonds. Magma, a modified version of the popular OrcaSlicer slicer software, adds a specialized infill pattern that creates sealed vertical channels inside your print, then injects melted plastic through those channels mid-print to fuse the layers together. The result: parts that are no longer fragile between layers—a clever solution to the Z-axis brittleness that's plagued FDM printing since its inception.

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