April 24, 2020
Description
original design 4285393 (https://www.thingiverse.com/thing:4285393) is fine, bought face masks made with shoelaces instead of elastic bands (what's a smart idea!)
the ends pass the first large nut but not the other two
inspired by this I design I made slots of 3.5mm width
a simple scaling seemed to be too large at all just to get the 2nd and 3rd slot more of width
License:
Creative Commons - Attribution - Non-Commercial - Share Alike