• 50 visors batch
• 3DVerkstan visors for Europe https://3dverkstan.se/protective-visor/protective-visor-versions/
• Paris, France
• 0xdBdF0A42Ee6809E4C4350F99539e91B91b4ae4b0
• Soap and water

Please specify:

• Total amount of mask batches (min 25 masks per batch)
• Model of the mask (It's recommended to print Prusa ones)
• Location to be used (need proof of need and later post photos of use)
• Ethereum address to receive grant
• Specify how they will be cleaned before giving them

Example:

• 2 batches (25*2)
• RC3 Prusa Protective Face Shield -
• France, cocimarket 92...
• 0x536737....
• Soap and water with gloves

Gitcoin grant: https://gitcoin.co/grants/578/open-source-covid-ventilator-oscv?tab=description

Description

I testing the prusa face shield.
The shield is strong but stay flexible enought

I'm waiting the delivery for the front glass, i keep this issue updated when i receive this and build the entire mask.

Configuration

i have a good result with RC3 and this is my configuration :

• Printer : Prusa MK3S
• Speed : 120 mm/s
• Infill : 20%
• Shields : 4
• Material : PLA from Ice Filament
• Temperature : 210 °C
• Printing time: 3h
• Supports: No supports

Todo

• Print RC3 part
• Attach transparent plastic
• Find a way to attach the structure to the head
• Make holes in transparent plastic

Hi everyone ! Let's "face" this together (the only joke of this article i promise)

A few days ago i answered an issue by @cotontigeh (#8) about RC3 mask from PRUSA.

You will find my configuration for a CR10S creality FDM printer there, i used the same for the mask i'm about to talk.

Today is about an entire list of face shields from belgium, already produced and tested there by several medical places and with feedback from medical staff.
There are 4 differents solutions for different technologies, materials and ressources.
I will make a feed back about one i printed (solution n°1 is for FDM printer) that is inspired by the RC3 mask from PRUSA, but all of them seems good in regard of the material you have at disposition. (some of these won't need a 3D printer, another one will need a laser cut for exemple)
NOTE : ENGLISH AND FRENCH VERSIONS ARE ON THE SAME PAGE

First thing first :

https://fablab-ulb.gitlab.io/projects/coronavirus/protective-face-shields/index-en/#protective-face-shields
It's where you can get all the informations you need, like where you can get .STL (or .GCODE for those who don't have 3Dprinter at home), the methods to assemble or desinfect the masks or simply where it was tested.

https://gitlab.com/fablab-ulb/projects/coronavirus/protective-face-shields/-/tree/master
This is the repository where you will find every important files, like the readme section, the direct link and preview of the different masks, the pattern needed or optional, and every other stuff and so on !!

there is a update of the files still at this time and people continue to add more of informations, GCODE or tutorial and tips there.

So what's about this mask you can 3D print at home ?

Well it's a light mask inspired by the RC3 mask by PRUSA

It's light like 1/3 of the RC3 and print in more than an hour.
One good particularty you can find in the many files is that then can come up in stack of 1, 3 or 15 for those who want to make 1 print a day and you can put more than one stack on the same bed level if your printer is big enough. It's less heavy yes but it can be printed way faster for those in serious need of protection and can stand on your head without further fourniture. You can still add a rubber at the back if the head is too small (rubber is basically latex so it's pretty safe to use and clean, plus it's easy to find at home).

You still need manufacturing those masks like separate them if you had stacked masks, cut and assemble the PVCA sheet and eventually clean your print if you need. But don't worry everything is explained.
https://fablab-ulb.gitlab.io/projects/coronavirus/protective-face-shields/PFC-Headband-Light-3DPrint/tuto-fr/#processus-de-fabrication

Here is the result from a 3x stack and a faceshield without PVCA (i don't have the right dimension at home so i used a paper instead) i didn't need the rubber band at first but i tried with too and it's way more tight with ! I will certainely give away some of my incredible collection of rubber bands with the masks.

To go further :

I will add certain things than come up to me. I am no doctor but studied enought to say that THIS IS NOT BUILD TO LAST AND USERS MUST BE AWARED THAT IT NEED A PROPER CLEANING BETWEEN TWO MANIPULATIONS. Medical professional are (or should at least) aware of this situation but not people like shop keeper or security agents.
• The PVCA sheet is very efficient but can be contaminated by every touch of the user. The only spot where you should manipulate thoe masks is where you put those rubber bands. And it's for ALL THE MASKS.
• FDM production leads to small cavities than can lead to surgical infections and require specific needs.
• FMD printing environnement is not safe for direct surgical purposes. (I have a dog, just THIS can lead to contamination, maybe not coronavirus but something else. And i'm printing at the same place where i paint, i cut, i varnish and so on...)

FRENCH ONLY

I will add another link of a recent site i'm currently on. It's a fresh new website under construction where you can search, ask and propose services for different people like hospitals, clinical services, police departement or shops. You just need to register for your needs.
https://www.covid3d.fr/app/
Please consider sharing this link for those who might not know it and those who might need it.