Flexible Mask Valvy [ How to Stitch and Assemble DIY 3D Printed Mask ]

An instruction on how to stitch and assemble the 3D Printed Mask. How to 3D print and slice please go here : All require STL files download from here: I made this for the community, for the time being the shortage of surgical mask, due to the outbreak of the Covid-19 virus. Good Luck everyone and my loves. Welcome comments and suggestions. Tips me cheese burger if you like my work. #COVID19 #3dprintedmas