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Description
IMPORTANT: TO CREATE A GOOD SCANNABLE QR CODE IT IS IMPORTANT THAT THE CONTRAST BETWEEN THE CODE AND THE BACKGROUND ITS PRINTED ON BE AS HIGH AS POSSIBLE (highest = Black on White)
Custom QR nameplate
Make a clean custom QR nameplate directly in MakerWorld's OpenSCAD customizer. Edit the visible name, QR content, optional phone/ID line, optional Japanese subtitle, colors, size, magnet pockets, and hanger holes.
What you can customize
- Name text: the main raised label on the right side.
- QR content: URL, text, contact info, Wi-Fi helper payload, or other QR data.
- Phone / ID line: optional smaller text under the name.
- Japanese subtitle: optional katakana/Japanese-style subtitle line.
- Back side: optional hanger holes and blind magnet pockets.
Multicolor export workflow
- Customize the model once in MakerWorld/OpenSCAD.
- Open “00 FIRST: STL export part selector”.
- Export the needed parts: 1_plate_only, 2_qr_only, 3_main_name_only, 4_phone_number_only, 5_japanese_name_only, and 6_border_only.
- Import the STLs together in Bambu Studio/OrcaSlicer as one object with multiple parts.
- Assign colors: plate = red/color, QR = black/dark, text + border = white/light.
7_qr_backing_only is optional/off by default. The default design intentionally has no white QR panel.
QR / FDM printability
- The QR must stay square.
- Default QR box: 58 mm with a 4-module quiet zone.
- Default ECC: M.
- Module pitch: about 1.57 mm/module at 100% scale and 1.33 mm/module at 85% scale.
- For a 0.4 mm nozzle, aim for about 1.2 mm/module or larger.
Contrast guide
The no-white default looks cleaner, but scan reliability depends strongly on plate color, surface finish, and lighting.
| QR / plate colors | Approx. contrast | Practical note |
|---|---|---|
| Black on dark red (#D00000) | ~3.7:1 | Clean look, but the hardest no-white case; use matte filament and scan-test. |
| Black on bright red (#FF0000) | ~5.3:1 | Better no-white choice than dark red. |
| Black on orange (#FF6600) | ~7.2:1 | Strong no-white scan choice while still colorful. |
| Black on white | ~21:1 | Best scan contrast, but not the default aesthetic. |
Recommended slicer settings
- Arachne/adaptive walls.
- 0.12 mm layers; 0.08 mm for extra-crisp QR/text.
- Slow QR/top-detail speeds around 20–40 mm/s.
- No ironing over the QR modules.
- Use enough AMS purge/flush for clean red/black/white transitions.
- Scan-test your chosen filament colors before printing a batch.
Model notes
- Embedded QR: the black QR is mostly inlaid into the plate with only a very low visible relief.
- Magnets: back magnet pockets are blind recesses and are depth-clamped so they do not become through-holes when scaled down.
License
You shall not share, sub-license, sell, rent, host, transfer, or distribute in any way the digital or 3D printed versions of this object, nor any other derivative work of this object in its digital or physical format (including - but not limited to - remixes of this object, and hosting on other digital platforms). The objects may not be used without permission in any way whatsoever in which you charge money, or collect fees.
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