It’s not a great idea to 3d print wifi access qr codes. Waste of plastic. Report comment. Reply. Jack324 says: February 8, 2020 at 11:19 pm Agreed.

Researchers have 3D-printed edible QR codes that may help the industry in creating non-toxic tags. Our lives were made considerably simpler by QR codes, which were developed in 1994 by the Japanese.

Most QR codes do the same thing – when a smartphone scans them with its camera, ... QR codes could generate 3D images on phones – no internet required By Ben Coxworth.