QR code generator - 2D barcode

🧩 Parametric QR Code Generator (OpenSCAD)Create 3D-printable QR codes directly in OpenSCAD. Type your text/URL, pick error-correction, set size and thickness, and (optionally) add a solid background plate (“quiet zone”) for reliable scanning.This project uses the excellent scadqr library by Darwin Schuppan (MIT). It renders true QR modules (squares), auto-sizes the grid for your content, and supports UTF-8 text.🚀 Quick StartINPUT_TEXT → type what you want to encode (e.g., https://example.com).SIZE → final QR size in mm (module size scales with it).CODE_EXTRUDE → thickness of the black QR squares.Optional: SHOW_GRID_FILL + FILL_EXTRUDE + QUIET_ZONE for a solid backing plate.Render, export STL, print with strong contrast (dark QR on light background), and test with a phone.Tip: Colors here are preview-only; STL exports are colorless. Use filament swap or multi-material for two colors.🔧 ParametersMainINPUT_TEXT — What the QR encodes (text/URL/anything UTF-8).ERROR_CORRECTION — "L&#