danleow posted a detailed guide on how to convert 2d image files of QR codes into 3d models ready for 3d printing using Blender.
Different color on the top can be applied with market or by changing the color of filament near the final few layers.
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Detailed step-by-step tutorial is at:
http://www.instructables.com/id/Create-a-3D-Printed-QR-Code-in-Blender/?ALLSTEPS
Different color on the top can be applied with market or by changing the color of filament near the final few layers.
Detailed step-by-step tutorial is at:
http://www.instructables.com/id/Create-a-3D-Printed-QR-Code-in-Blender/?ALLSTEPS