Printing a QR code is easy. Printing one that scans on every phone, looks good and survives daily use takes a little planning. These guides cover the choices that matter, from module size and color methods to table stands, keychains and troubleshooting.
The measurements and printer settings that decide whether a printed QR code scans: module size, relief height, contrast, quiet zone and error correction. It ends with a test routine and a checklist to run before every batch.
Read the guideWhat separates a 3MF file from a pair of STL files, and three ways to get two colors: a multi-material system, a manual filament change at one layer, or one color plus paint. It includes notes for opening the files in Bambu Studio, PrusaSlicer, OrcaSlicer and Cura.
Read the guideHow to plan menu and Google review stands for a restaurant or cafe, including what to link to, which size to choose, where to place the stands and how to clean them. It also shows how to work out how many to print.
Read the guidePractical advice for keychains and wall plaques, including how big a keychain will be, how to size the ring hole, how to make a wifi plaque for a rental and how to mount a plaque on different surfaces.
Read the guideA troubleshooting checklist and quick-fix table for QR codes that will not scan, covering contrast, glossy filament, small modules, long links, curved surfaces, lighting and phone distance.
Read the guideTools in the generator:
Ready-made templates:
The 3D QR Generator is free, needs no sign-up and runs entirely in your browser.
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