Anti-fog nose clips
thingiverse
2 Nose clips for covid masks: 1 version for disposable chirurgical paper masks (PAPER) 1 version for washable fabric maks (FABRIC) Done this as IMO best working designs I found were too thin (brittle) especially with fabric masks hem being too thick... Those I made in Solidworks are largely "inspired" but this is no rework ;) STL files should place automatically shorter face on printer bed (as intended). No supports needed. Best to add 3mm border for better grip during printing. Hope this will work for you and I'd be happy to have feedback :)
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