Vaccum formed sealed mask
thingiverse
[updates: - Successfully tested by Matt Barinholtz with Eva foam inner shell and HIPS outer shell - added draft angle for easier removal from the mold. - added extrusion for easier filter holes cutting ] (mostly) vacuum formed FP2 mask ====== Motivations: ----------------- * faster production than 3D printing * possibility of using a flexible material favoring the adaptation to different face shapes for sealing. * vacuum former are easy to diy in fablabs or at home: https://www.instructables.com/id/Another-DIY-Vacuum-Former/ Inspiration: OpenMask V4: https://www.thingiverse.com/thing:4217534?fbclid=IwAR0pxJDvh4IbgvWBtUQ-LOkHylF10ok5WuKJPCfsy14tkCZTd6JG6rXyefw Instructions : ------------------ * 2 shells are vacuum formed on 3d printed molds. * Holes are cut in the flat surfaces of the two shells to allow air to pass through. * A filter is inserted between the two (now perforated) flat surfaces * The two shells are assembled according to a method to be determined (bonding, friction, elastics on the outer shell to maintain the pressure?) * Holes are drilled to fix two elastics which will pass behind the head. More info, source files and instructions: https://docs.google.com/document/d/18udAtN7a6cPPwP7Y57qWewb93cckByvhFXsOtu1B500/edit#heading=h.e0tx3cvgtip6
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