Plastic Covid HEPA Masks - DIY

thingiverse

3D printing is too slow for mass production. One solution is vacuum thermoforming plastic sheet material into masks from mold forms created on your 3D printer. In the uploaded pdf I outline how to do this without a thermoforming machine. This is a work in progress, and I apologize in advance if I state the obvious or fail to give proper attribution. There are still several aspects of the project that could use some collective input and testing. Note: the links below seem to be broken, working ones can be found in the pdf version of these instructions.