My upstairs neighbor is a nurse and asked me for a mask relief strap. I had some issues with the existing designs so I made this one. It is very fast to print (about 9 minutes at .6mm) and many can be fit on a build plate at once. With this design I’m able to produce ~15 straps in a two hour print.
Set it up on a flat side and go. I’ve had the best success with orientating it parallel with the long axis of my printer. Make sure you have good bed adhesion.