Knitting Machine Makes Solid 3D Objects

By Patricia Waldron

A new prototype of a knitting machine creates solid, knitted shapes, adding stitches in any direction – forward, backward and diagonal – so users can construct a wide variety of shapes and add stiffness to different parts of the object.

Unlike traditional knitting, which yields a 2D sheet of stitches, this proof-of-concept machine – developed by researchers at Cornell and Carnegie Mellon University – functions more like a 3D printer, building up solid shapes with horizontal layers of stitches.

“We establish that not only can it be done, but because of the way we attach the stitch, it will give us access to a lot of flexibility about how we control the material,” said François Guimbretière, professor of information science in the Cornell Ann S. Bowers College of Computing and information science and the multicollege Department of Design Tech. “The expressiveness is very similar to a 3D printer.”

Amritansh Kwatra ’19, now a Ph.D. student in the field of information science at Cornell Tech, also contributed to the study.

Read more in the Cornell Chronicle.