Commit 65763f2c authored by Matt Carney's avatar Matt Carney

tweaks

parent 851b38d0
......@@ -11,17 +11,16 @@ Main progress is being tracked inside a private (private in order to manage Sign
A little more info can be found at https://maskproject.tech
## 2020-04-13
First tooled component from our prototype LSR injection molding facility in OR [at Kaos Softwear](https://www.kaossoftwear.com/).
First tooled component from our prototype LSR injection molding facility in OR [at Kaos Softwear](https://www.kaossoftwear.com/). This is a molded face-mask portion, and 3d printed rigid components.
![alt text](media/inUse.jpg "Molded face-mask portion, 3d printed rigid components.")
Cutting molds on horizontal and vertical mills.
Cutting molds for the LSR face-mask portion.
![alt text](media/horizontalMilling.jpg "Horizontal mill for prototype mold bases.")
![alt text](media/verticalMilling.jpg "Vertical mill for prototype mold bases.")
First tooled components from Protolabs should be shipping today.
We are testing filter material at four different particulate testing facilities: CBA, MIT Chem. Eng. Smith College, Wakeforest University. Some important factors is that air velocity changed kinetic energy of particles. Non-woven media relies on electrostatic charges that may act differently with different particle types: NaCl will be havior differently from Au or Latex spheres, or incense smoke. These are all good particles to test, but likely to produce different results than the NaCl specified in the N95 specifications.
We are testing filter material at four different particulate testing facilities: CBA, MIT Chem. Eng. Smith College, Wakeforest University. An important consideration is that air velocity changes kinetic energy of particles which may effect filter efficiency. Also, non-woven media relies on electrostatic charges that may act differently with different particle types: NaCl will be havior differently from Au or Latex spheres, or incense smoke. These are all good particles to test, but likely to produce different results than the NaCl specified in the N95 specifications.
We are also coordinating with some Media Lab member companies that can do bacterial challenges to the filters.
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