![]() To fix this problem, try to choose colors that contrast enough. This happens when the color of your foreground closely matches that of your background, making it difficult for the code reader to decipher the code. One of the main reasons QR codes fail to work is poor contrast. any tips on printing them? I did so some clean-up of what I thought was stringing but still seems very hit or miss by u/breakingd4d in 3Dprinting Printed dual-color QR code scanned once then won’t anymore. It was noted that when the black part was too high, it stuck out, creating shadows that confused the scanners.Ī smaller layer thickness, on the other hand, could be read properly from any angle.Īnother user who printed a black QR code on a white background said that he kept the height of the black part between 0.2mm-0.4mm to avoid creating shadows that would mess up the contrast and make it hard to scan. One user who had printed a dual-color QR code scanned it once, but it failed to work.Ī user recommended to the inquirer to keep the QR code depth at 2-3 layers max since it seemed to be too high. After I did this, the QR code scanned nicely. In order to fix this, I simply redesigned my QR code to be just a few layers of filament (2-3) above the based so there was a nice contrast between the black and white colors. I figured out that it was due to the actual QR code part being raised up too high so the contrast between the black and white colors didn’t show up too well on my phone’s camera. When I tried to 3D print a QR code, it wasn’t working at first. ![]() Create a QR code that is sharp and clear.Here’s how to fix a 3D printed QR code that doesn’t work: How to Fix 3D Printed QR Code Not Working How to Fix 3D Printed QR Code Not Working. ![]()
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