Covid Mask strap

thingiverse

I created this project because I couldn't find or buy the elastic with a hole in it, like the ones used in children's clothing. So, I decided to make my own. It's designed to be extra long, so it should fit anyone. Simply cut it to your desired length and leave at least one extra loop on each end in case the hole breaks - you can shift it either way and keep using it. For printing TPU, the best advice I can give is to print slowly. For example, my printer's default speed for PLA is between 75mm per second and 100mm per second, but for TPU, I print at 25mm per second. The material I'm using is Ninjaflex TPU. The temperature setting is 235 degrees Celsius. My first layer prints at 15mm per second, while the subsequent layers are printed at 25mm per second.