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Prototype Knitting Machine Builds Solid 3D Objects With Layered Stitches

A CornellCarnegie Mellon prototype forms small solid shapes by layering directional stitches.

Overview

  • The research debuted at ACM UIST in Busan on Sept. 30, with the paper published in the conference proceedings.
  • A 6×6 array of needles uses 3D‑printed symmetrical double hooks on brass supports, allowing independent knit or purl operations.
  • A stitch code library and a freely movable yarn head let the system place loops anywhere on the array to achieve complex geometry and overhangs.
  • Demonstrations include C‑shaped pieces, pyramids, wrist warmers, and boxes, showcasing variable stiffness and layered construction.
  • The proof‑of‑concept remains slow and error‑prone, with plans to scale the needle bed and explore future uses such as biomedical scaffolds.