一本道无码

Yuichi Hirose has a dream 鈥� a dream that someday everyone will have access to a machine capable of knitting furniture.

This machine wouldn鈥檛 just knit the furniture鈥檚 exterior fabric, but would use knitting to fashion solid three-dimensional chairs, tables and other objects. Tired of that love seat? Just unravel it and reuse the yarn to knit yourself an ottoman.

This new fabrication technique 鈥� first envisioned by Hirose, a robotics Ph.D. student in 一本道无码鈥檚 鈥� is called solid knitting. The idea captured his imagination more than a decade ago. And now, working with a research team headed by , an associate professor in the , he's made it a reality.

鈥淢y dream is to have these solid knitting machines everywhere in the world,鈥� Hirose said.

Solid knitting can be thought of as analogous to 3D printing. Just as 3D printers build shapes layer by layer, solid knitting builds shapes by adding knitted layer after knitted layer. But rather than being held together by glue or melted plastic, each new layer is stitched to the previous one.

It鈥檚 possible to produce solid knitting by hand, rather than with a machine, to gain a deeper understanding. The researchers have released聽 补苍诲听 for knitters who'd like to know more.

鈥淚t can be hard to wrap your head around the concept,鈥� said McCann, leader of the . 鈥淏ut it鈥檚 a very cool idea, and one that has a lot of promise.鈥�

Hirose got the idea back in 2012, while he was working on his master鈥檚 degree in digital fabrication at Keio University in Japan. He was interested in reconfigurable objects, spurred in part by a project in SCS鈥檚 called Claytronics. That project sought to build small modular robots that self-assembled to create many different shapes.

鈥淭hose robots were very cool, but not very versatile,鈥� he said.聽

The modular robots generally were connected to each other by means such as magnets or friction (similar to LEGO bricks) and could be easily dislodged. Hirose was looking for something more durable, but still reconfigurable. That鈥檚 when he got the idea for solid knitting.

He finished his master鈥檚 and headed out into the working world, but he never gave up the solid knitting idea. Eventually, he secured some grants, quit his job and, in 2018, began building a solid knitting machine. Like commercial knitting machines, his used rows of latch needles 鈥� hooked needles with latches that can be closed or opened 鈥� to manipulate yarn and hold loops open for the next stitching row.

While he was still building the machine, Hirose saw a report on the internet about a聽 that made it easier to reprogram commercial knitting machines. This method provided a practical way to use the machines to make customized 3D knitted pieces. These were hollow shapes, such as bunny rabbits that could be stuffed, not solid knitted pieces, but Hirose and McCann began talking about a possible collaboration.聽聽

Hirose鈥檚 knitting machine was somewhat finished by 2020, but the pandemic put the collaboration on hold. In 2021, Hirose finally joined the Textiles Lab as a research assistant and, later, joined the Ph.D. program in robotics.

The 一本道无码 team presented聽 at SIGGRAPH 2024, the annual Conference on Computer Graphics and Interactive Techniques, where it won an honorable mention in the Best Paper competition. SIGGRAPH posted聽 entry about the project.

The prototype, about the size of a clothes dryer, is still limited in the shapes and sizes it can produce. It can make triangular or rectangular prisms of varying lengths. The goal is to create a machine that can produce solid objects automatically, but more work is necessary to improve its operation.

The machine stretches the yarn loops quite a bit, so the researchers have used elastic cord as their yarn. Yet the resulting solid knits are 鈥渟urprisingly firm,鈥� considering that they are made of floppy cord, McCann said.

鈥淚t feels sort of like a stack of felt or the sole of a shoe,鈥� he said.

Though the machine is now limited in what it can produce, it is possible to use the technique to hand-knit larger, more intricate shapes, such as a pair of sandals.聽

Hirose said he plans to take future research in two different directions: building a much bigger machine for producing furniture and making a smaller machine for precise objects.聽

鈥淲e hope that other people out there are going to build their own solid knitting machines and come up with ideas we haven鈥檛 yet explored,鈥� McCann said.

In addition to Hirose and McCann, the research team included Angelica Bonilla Fominaya, a former arts and computer science student now a Google software engineer, who used the technique to produce art pieces. Mark Gillespie, who recently received his Ph.D. in computer science, developed the project鈥檚 3D visualization software, which has proven a boon in understanding the complex design process.聽

The research was supported by Japan鈥檚 Ministry of Internal Affairs and Communications, Panasonic Holdings Corp., Japan鈥檚 Information-Technology Promotion Agency, and the National Science Foundation.聽

More information is available on the聽, particularly for other researchers.