Nanohack v2 and remix (easier breathing)
cults3d
Nanohack v2 (final edition) by Copper3D (www.copper3d.com). Now it doesn't require supports or anything, just print and assemble. However, I strongly recommend using my remix, I modified it for easier breathing. After printing, put the mask in warm enough water to soften it up a little bit and mold it to your face to ensure a good seal. Print at 80 mm/s, 0.2mm layer height and 10% infill. Printed in PLA, I haven't tried TPU. Takes around 5 hours to print. Copper3D designed this mask to be printed with PLActive copper embedded filament, so use it at your own risk. Remember to replace the filter and clean the mask with a bleach/clorox or alcohol solution after each use.
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