A 3D-printable QR code

Encode any text as a QR code with error correction level configurable

Generate a solid: a base plate and raised modules, with a quiet zone

Module size, height and plate margin configurable, with defaults that scan from a phone at arm's length

Export STL, 3MF and OBJ

Verify in code that the generated pattern decodes back to the input

A two-colour variant: modules and base as separate bodies

Requirements