Guides to 3D print QR codes that scan
Everything we have learned turning QR codes into keychains, plaques and stands. Short, practical and with real numbers.
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How to 3D print a two-colour QR code with a single-nozzle printer
Step by step: the exact layer where you change filament for each part, how to do it in PrusaSlicer, Bambu Studio, OrcaSlicer and Cura, and the mistakes that ruin the code.
Read the guide → 📏How big should a 3D printed QR code be?
How small can a 3D printed QR code be? Calculator by link length, minimum size per format, nozzle and layer height, and how far away it scans.
Read the guide → 🌈Best filament colours for a QR code that scans
Which filament colour combinations scan and which do not: contrast measured for 11 common PLA colours, plus silk, transparent and glow-in-the-dark filaments.
Read the guide →