Guides to 3D printed QR codes
Everything we've learned about turning a QR code into a physical object that still scans: picking colors, sizing it for the distance people will scan from, slicing two colors on any printer, and fixing codes that won't read.
How to 3D Print a Two-Color QR Code (Step by Step)
A complete walkthrough from link to finished print: designing the code, choosing an object, slicing two colors, and testing the scan before you print a batch.
Read the guide → DesignBest Filament Colors for Scannable 3D Printed QR Codes
Which filament pairs scan reliably, which ones fail, and why — plus how to handle glossy, silk and translucent filaments that confuse phone cameras.
Read the guide → DesignWhat Size Should a 3D Printed QR Code Be?
How to size a 3D printed QR code for the distance people will scan it from and the detail your nozzle can print — with a simple rule of thumb and worked examples.
Read the guide → File formats3MF vs STL: Which File Format for Multi-Color 3D Prints?
What STL and 3MF files actually store, why 3MF is better for two-color QR codes, and when an STL is still the right download.
Read the guide → SlicingTwo-Color QR Codes on a Single-Nozzle Printer: Adding a Filament Change
You don't need a multi-material system for a two-color QR code. Here's how to find the right layer and add a filament change in Bambu Studio, Orca Slicer, PrusaSlicer and Cura.
Read the guide → TroubleshootingWhy Won't My 3D Printed QR Code Scan? 9 Fixes
A practical troubleshooting checklist for 3D printed QR codes that scan slowly or not at all — contrast, size, stringing, glare, quiet zone, and more.
Read the guide → Use casesHow to Make a Wi-Fi QR Code Plaque for Rentals, Hotels and Offices
Let guests join your Wi-Fi with one scan. How Wi-Fi QR codes work, how to set up a guest network safely, and how to print and place a durable plaque.
Read the guide → Use casesQR Code Menu Stands for Restaurants and Cafés: A Practical Guide
How to set up QR menu stands that diners actually use — what to link to, how to make the menu page phone-friendly, where to place stands, and how to keep them clean.
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