Download all the files for this chair here and open the 3D model with a CAD (computer-aided design) application. I use Rhino ($995, PC/Mac beta), but if that's too expensive, use the trial version ...

Isomi unveils circular lounge chair with zero upholstery waste.

UK design team Isomi, based in Manor Park, Cheshire, has developed the Knit One Chair, demonstrating how 3D knitting ...