gliax / faceshield Goto Github PK

The README says don't change the print settings but the printer and filament settings can be changed. But the printer settings in the MF3 project have this dependency
printer_notes=~/.*PRINTER_VENDOR_PRUSA3D.*/ and printer_notes=~/.*PRINTER_MODEL_MK3.*/ and nozzle_diameter[0]==0.4

That makes it hard to use another printer and NOT change print settings.

My printer can handle much much more of these at a single time, but I'm not sure how to stack these in a good way. Is that something possible? I'm using the AnyCubic Predator which has a print volume of 370×370×455mm.

This sounds stupid but I cant get the buckle to assemble properly would appreciate if someone has any video, I tried following the assembly instructions.

Thanks

I realize PETG/ABS is recommened, but not everyone can print this, or has stockpiles of filament of a specific type.

https://www.billingsclinic.com/foundation/
https://www.billingsclinic.com/app/files/public/4141/3D-Mask-Directions.pdf

This organization is suggesting PLA. Limiting to PETG/ABS limits the number of possible people who can print them.

Hi all,

Having a tough time finding mylar sheets quickly, does anyone know if poly (polyethelene) sheeting (from places like Uline.ca) would be a good substitute?

Thought it may be helpful/convenient to have a link to the license in the readme

I'm looking to start producing these for my local healthcare team in St. Marys, ON. I was wondering if acetate transparency sheets might work instead of mylar? Sorry if this isn't the right place to ask this question, I'm new to Github and didn't know how else to make contact.

Hi,
Great project. In the CBC article

https://www.cbc.ca/radio/asithappens/as-it-happens-thursday-edition-1.5502954/canadian-doctor-who-works-in-gaza-makes-3d-printed-face-shields-for-covid-19-1.5502964

the red prototype is vastly different than the product in the current design. Our first run of the current design took 4 1/4 hours to produce a single copy. The prototype looks like it could be made in larger quantities using moldable plastic in flat sheets and then heated to fit the face of the user. The current design would require a very complex negative mold and appears to use more plastic.

Can you explain the change in design? Does it have anything to do with the large opening at the top that is addressed by the current design? Did users complain about the fit on their noses? Can you post the files for the prototype, please?

Thank you,
Gregory

Need to know the width of the strap, 1"?

i dont have petg i have lots of pla and resin for my sla printer will they work and then who do i send them to ?

What is the recommended Nozzle diameter? Slicing with a 0.8mm nozzle leaves walls 1 layer thick in many places.

Hello.

The work envelope for our printer is only 8" x 8" x 8". Would it be possible to print two attachable parts to get the ideal size?
Would anyone modify the code to circumvent this issue, please?

Thanks,

Would be great to see what this looks like right on the front page.

Thanks for open-sourcing your design

Most health workers are used to single use shields. I'm in contact with a doctor at the local hospital here are some quotes from our discussion

"It's just inconvenient for us to soak
At most they can wipe with a wipe otherwise prob will throw (though later when we are super out of gear it might be different)"

"Vivian Lee: Just putting one patient on a breathing machine you burn through at least 4
For every resp patient you burn through 2 at least"

There is a need for a disposable version (less robust) which is faster to print. One that a single printer can print at least 20 a day.

Was unsure when printing this what the correct/suggested infill settings were

Prusa has come up with an ingenious way to print the shields stacked one on top of another. This allows for printing many more shields at a time, and minimizes failed prints due to first layer mishaps. I was just studying their design in the slicer. I'm thinking we can apply this method to this shield. Any thoughts?

Downloaded the files, tried to open them in Meshmixer and Slic3R, neither software was able to load the models.

Readme in master branch mentions a 3MF file but there is none in the main branch.

There appears to 3mf files in freecad & covered branches

• Freecad - https://github.com/GliaX/faceshield/blob/freecad/faceshieldx1.3mf
• Covered - https://github.com/GliaX/faceshield/blob/covered/faceshieldx1.3mf

Assembly is unclear, photos or a video would help greatly.

@tareko I had a look at the sizing as you mentioned. I agree triming the height by 2cm makes sense (so from 250 to 230 mm). Width is fine at 280 mm. Would you like me to modify the repo?

Is CPE an acceptable alternative to PETG?

Thought it may be helpful/convenient to have a copy of the TAPR OHL to the repository for reference so the repository can be self contained

Hi! I've been looking at this and other designs from Prusa and Budmen.com ... the question of a cover to protect from droplets entering from the top came up. I'm not seeing it on your current files, though I noticed it in the illustrated assembly instructions.

I guess I'm asking to confirm:
a) that the current version is w/o cover and is ok to use (as I understand, it is already in use),
b) if there's one with a cover that I'm not finding,
c) thoughts about how the designs differ.

I'm in London, ON by the way. Looking to assist but want to be sure about printing something that will be of use!

Hello,

I'm in London, Ontario and own (4) 3D printers and a laser cutter and would like to make as many of these face shields as possible.

1. I have slightly thickened the front, middle part of the shield that goes directly onto the forehead, from 1mm to 2mm. The reason being that the first one broke very easily in my hands due to the 2 center strap notches significantly reducing the rigidity of the middle portion. I hope this is ok. This adds 2 minutes 30 seconds to the print time, but the difference was quite substantial.

2. I have spent several hours attempting to locate a good source for mylar sheets and elastic straps, to no avail. Perhaps you can save me hours of time and frustration by pointing me in the right direction? Are they online or can I obtain them in locally?

Thank you!

The work is presented under the TAPR OHL or GPLv3 licenses insofar as it applies, not sure if you wanted to have a license for the instructions & documentation separately like CC-BY or the like.

This may make it more explicit for translators & contributors to the instructions/docs side of the project

Would be nice to have a V1.0.0 (or a V0.1.0) release in GitHub to make it clearer to see when there are major & minor releases.

Instructions on how to do this for reference can be seen here

Hi everyone, looking to test these formally with healthcare workers, but am looking for guidance. Has anyone created some form of evaluation tool that they'd be willing to share? A questionnaire of some sort? Are you testing comfort over a certain period of time? Testing safety, ease of donning/doffing or ability to stay stable on the head?

This is fantastic work. I work on 3D printing projects at a healthcare facility in Toronto and would love to start making these. I'm wondering if there are any standards (by Health Canada or other certifications) that these shields need to meet before they are used?

I didn't see an FAQ page, so I took some of the answers from the issues (closed and open) to make it. It is attached. If you add it I will contribute to it as possible.

faceshield_faq.txt

Hi!
Sorry for the unwanted message here, but I thought it would be worth sharing the efforts being made from the folks at Prusa Research, as they are doing something similar and thinking about doing other tools for health workers (I'm guessing this is something you are already aware of, but in case not):
https://blog.prusaprinters.org/from-design-to-mass-3d-printing-of-medical-shields-in-three-days/

Hi, I can't seem to find sheet.svg

Regarding the 5mil requirement, how critical is the thickness? Can 4mil and 6mil be used?

Thought it may be helpful/convenient to have the source of the instructions images to make it easily translatable by anyone