Vacuum formed FP2 mask
mainly Vacuum formed FP2 mask
- 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 fab labs or at home: https://grabcad.com/library/face-mask-7
OpenMask V4: https://grabcad.com/library/face-mask-7
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 that will pass behind the head.
3d print vacuum forming molds:
Vacuum form the two shells (out of EPDM?) and cut holes:
Materials to be tested:
- EPDM / Neoprene
Mold for inner shell:
Mold for outer shell (+ ref inner shell):
Shape of the mask:
- fusion 360: https://grabcad.com/library/face-mask-7
State of progress:
- CAD model V0
- 3D printing: the printing of the molds was launched at CityFab 3. In principle they are finished.
- Collect the molds,
- find EPDM (city dev?)
- Thermoforming tests, a priori on the small Factory.
- find filters (city dev?)
- cut holes and holes for elastics.
- Assembly and Fit tests.
- … iterations
- … tests
- … certification
- … production scale.