Looks like we'll be printing either the Spanish or the Prusa design on the 3D printers. We should work out how quickly we can print them, so we can get more printed.

We're all leaning towards a local strategy vs. linking with other UK wide movements. You can see the discussion here Link.

With this, we need a bunch of things; bank account, our own accountant, our own funding programme and distribution channels.

@ajlennon mentioned that we can't use the DoES account because it's a CIC etc. No drama, I have a former EY accountant working to set us up a bank account for this project.

Question for me is identity. Since most people here organise around DoES, I'm proposing an identity for the project: DoES PPE.

Knocked out a quick logo and landing page design.

I can set up a group email something like doesppe@gmail.

Can I get your thoughts? 👍🏼👎🏼 ?

There is a quite incredible amount of conversation and activity on these two slack groups

• covid-19volunteersuk.slack.com
  
• helpfulengineering.slack.com
• TODO: Please add other sources here as needed

I suspect it would be hugely helpful to reduce duplication of effort if somebody could take on monitoring these groups and pulling out information that is of relevance to our local effort and then reposting information and links to these issues where relevant and to the Wiki pages we are about to spin up in this repository

NB. I have also setup a local channel for our efforts in the North West of the UK in the covid-19 space - browse for #znorthwestuk - local areas are prefixed 'z'

I have a number of email threads about the local need for PPE.

Some trusts are actually quite well provided for at the moment (Alder Hey) but others are in dire straights (Aintree). There are also many other health professionals and health workers in dire straights including GPs and hostels.

I am increasingly seeing contacts such as this:

We approached a manufacturer that we have worked with before in Glasgow to produce 3500 for us. We are getting about 350 a day from them. We have also placed an order from a repurposed clear plastic box factory in China for 50000 that should arrive in 2 weeks. We have made masks out of overhead acetates, foam and elasticed ribbon - but we are only using this for our staff training scenarios (we are getting through 150 per day). We are a small hospital with only 300 beds so you can do the calculations from there. When we have significant numbers of covid patients - then I would estimate using 600 per day (unless we clean and reuse). The numbers required are massive.

I've suggested that I work with some healthcare professionals to put up a Google Sheet to start to capture the local demand.

Thoughts?

It feels like most people involved in the PPE effort have concentrated on what we have been told by medical professionals should be called "eye protectors" i.e. the face visors we are designing and printing / laser cutting / etc.

I suspect this is because we don't know if we could provide a filtering face mask that would be useful to medical professionals and those in the community and we don't want to be producing useless items that are of no real benefit.

There seems to be a lot of confusion around this issue so I am hoping we can come to some science backed conclusions as to whether we can do something, or whether we should leave this alone.

There has been discussion on Twitter - I think on @realsexycyborg's threads - that a lot of 3D printed face masks are useless. A big problem seems to be they don't properly fit to the face.

More recently I read this article which is saying the the following

A study from City University of Hong Kong found that the efficacy of a mask made at home out of two pieces of paper towel + a tissue “…were proven to have achieved 80 to 90 per cent of the function of regular surgical masks in terms of their filtration of aerosol and droplets.” That’s pretty good for something you can make from home.

https://medium.com/@thejanellemj/please-join-me-in-wearing-a-mask-71e0e3f4fe4a

@AlyssaAlabassi (Surgeon) provided this link to an opensource printable mask on Twitter

https://www.futura-sciences.com/tech/breves/imprimante-3d-coronavirus-masque-n95-impression-3d-2211/#xtor%3DRSS-8

ref thread: https://twitter.com/AlyssaAlabassi/status/1243956886329843713?s=20

She also provided this link from the Lancet on use of masks

"Rational use of face masks in the COVID-19 pandemic"

https://www.thelancet.com/action/showPdf?pii=S2213-2600%2820%2930134-X

Everything is in place to produce more of the laser cut designs from DoES
Sourcing materials #21 has been an issue but we should have sufficient to make in greater numbers. It would be good to work out a rota to safely keep the machines running as much as possible.

The three stages are;

• Laser cutting headbands - This is the slowest part of the process so keeping the machine supervised as much as possible is the most important part (Or utilising other cutters identified in #46)

• Cleaning - Both parts of the headband need cleaning in IPA to remove staining.

• Face visor - There is some A4 sheet suitable which just needs four holes punching and the corners rounded. The remaining material is on a roll and needs cutting into A4 sheets first. It's a quick process and we have ~250 in stock just from this afternoon

All three stages are set up in separate areas but obviously it's important not to have crowds in at the same time.

This will need teasing apart in to multiple threads.

Orders are coming through + the donations are gathering momentum (link). Some questions:

1. What daily throughput of visors can we get reach at DoES?
2. @ajlennon + @amcewen + @Moorst and I have access to the source of truth spreadsheet for orders, does anyone else want access? nudge me?
3. There are lots of people saying they can produce with their 3d printers at home / schools etc, are we planning on aggregating them? (specifically, assigning them to jobs, reimbursing them for materials)?
4. @DuncanNisbet is working on leads for plastic, I linked AstraZenica to @amcewen for materials, where are for materials? Do we need to order more? We can draw down from the GoFundMe as and when we need. Will need to coordinate with Mazen, project CFO.

Looking to the request / dispatch flow, it looks like there are a few key Jobs to be done:

1. Notify people their request has been received
2. Assigning a job to a maker (i.e. DoES, or School)
3. Tracking progress
4. Notifying requester of dispatch
5. [IF] requester has mentioned they can pay, our handsome CFO @mjamjoum can draw up an invoice to get funds back in

I have a friend who is happy to help with this.

Am I missing anything?

https://twitter.com/arthrowl/status/1245323435422728193

Could you estimate a unit cost? Might help people rationalise their donation, e.g. "my money will pay for 10 visors, neat"

I don't know if Arthur has a Github account, so I'm making this issue on behalf of him.

This is a great idea. Once we're sure of the real pricing structure for our production, we should let people know what their £10+ donations are going to achieve. Whether £10 will get us 100 visors, for example.

I worked out in #4 that a standard 1KG reel of filament is around £17, and will afford us, conservatively, 90~ visors. Once this has been proven in the real world, we should let people know on the gofundme that £17 = 90 visors.

This was based on the Verkstan design, which I'm unsure if is valid to use at this point still.

The same should be applied to all of the other things we're capable of producing, once we find out for sure.

I don't know enough about this to make a call, so putting this to the community.

In broad strokes, we will need ways to:

1. Secure & distribute funding
2. Source materials
3. Produce PPE
4. Handle & fulfil requests

Lots of stuff between the bullet points, but these are the big jobs to be done.

Looks like we have some options about what to do here:

A) Centralise all of our work with the 3D Crowd with ~1200 members across the UK
B) Work locally
C) Mixture of A + B

I don't know what C looks like. Maybe we don't need to know and we feel our way through it.

What do you think is best?

Opinions very welcome, want to close this off by tomorrow.

Placeholder for details on the laser-cutting resources available external to DoES

Have been reaching out to ask if local schools have 3D printers or laser cutters we can borrow.

When trying on the latest prints of the Spanish design, using their 0.3mm layer height option, it twists lots. I wasn't sure if that was me pulling them off the printer too quickly or something, so left them to cool today and it's no better.

I didn't see that problem in the one I printed at 0.2mm layer height, but maybe I got lucky...

How are we going to distribute these?

Looks like we have a number of options:

1. Centrally through Clinical Commission Groups
2. Centrally through Trust Procurement Teams
3. Direct to healthcare workers through an informal request/fulfil
4. Any combination of the above

Speaking with Dave Kershaw who is going to work with us to try to certify or at least ensure maximal regulatory compliance for PPE provision

Placeholder for those conversations

@ajlennon has put together a spreadsheet of suppliers we've contacted.
I've put together a list of orders we've made to some of these suppliers.

I've merged my sheet into Alex's so we have 1 location for suppliers & orders (on different tabs)

https://docs.google.com/spreadsheets/d/165ydLAv_HcAsAB7a8fG1qEOGcXx4beffEl95sK_pK_o/edit?usp=sharing

Thanks,

Duncs

It's been suggested that DoES Liverpool becomes a distribution centre to fulfil requests for PPE visors coming into DoES.

Current situation

• Requests for PPE visors are coming into DoES (e.g. from NHS, local care homes)
• Several small firms / individuals are offering their laser cutting & 3d printing services to help build the visors
• Fulfilment of requests are not joined up, males the process more complex than it needs to be

Back of napkin proposal

• Requests for PPE visors are coming into DoES (e.g. from NHS, local care homes)
• Several small firms are offering their laser cutting & 3d printing services to help build the visors
• DoES Liverpool holds inventory of completed visors (e.g. ~1000 visors)
• DoES Liverpool fulfils requests for PPE visors out of DoES Liverpool stock
• DoES Liverpool builds visors to current plans
• 3rd party firms / individuals continuously build visors (laser cut or 3d printed) to feed DoES inventory
• 3rd party firms / individuals have read-only access to our PPE Suppliers spreadsheet so that they can source their own materials
• DoES Liverpool reimburses 3rd party firms / individuals £1.35 per completed visor (this to be made clear to 3rd party firms / individuals)

Immediate questions / concerns

1. How to mitigate 3rd party firms / individuals not delivering enough / less than promised completed visors
2. How do we get traceability of the visors being delivered to DoES Liverpool? (use 3DCrowdUK model?)
3. DoES Liverpool does not commit to fulfil orders for which there are insufficient visors in their inventory. (e.g. order for 1000 visors, only 750 in stock, we offer 500 now, 500 in the next 48 hours)
4. Economies of scale - cost of visor may be more than £1.35 for 3rd party firms / individuals - will this be a problem?

Interested in your thoughts @amcewen @JackiePease @johnmckerrell

@RussCoty mentioned in DoESLiverpool/somebody-should#1415 (comment):

Not sure if I’ve missed anything here but is there a plan for hygiene in place during production?

Presumably that would have to be adressed before they could be used.

There are three areas we need to progress urgently imho:

1. national local maker communities and makers who can 3D print and laser cut PPE for their local communties

2. covid clusters to integrate SMEs into provision of PPE

3. importing goods from China

On (3) I have contacts in China as in my day job we do manufacturing there. My contacts tell me they have PPE there.

I have reached out locally to be told that we can't get anywhere as the Chinese have been "sending empty boxes and ripping us off" and NHS trust purchasing won't buy from anywhere that isn't "gold plated".

I have tried to make the point that we are long past all this and we need somebody with some clout to reach out to the Chinese government, send over some big cargo planes , fill them up and bring them back within a week, possibly with the PPE being distributed by the military here.

I have just been told by a surgeon this is what the French are indeed doing.

Different countries are sourcing resources differently. France imported 600 million masks from China by establishing an air bridge between the two countries. The first cargo plane scheduled to take off today. Italy got 300 doctors and nurses from China who arrived in Milan a couple of days ago.

ref: https://www.bfmtv.com/economie/14-semaines-de-rotations-600-millions-de-masques-le-colossal-pont-aerien-en-la-france-et-la-chine-1883777.html

My thinking is along these lines

• We leverage everything we can to make as much PPE equipment that is acceptable to the medical profession as quickly as we can.

• This includes 3D printing, laser-cutting, foam building with human beans and whatever else we can do.

• We want as much throughput as possible to provide as much PPE as possible as soon as possible within a 1-2 week timeframe which is when we expect NHS occupancy to peak.

• As a bare minimum we need to prep the consumables pipeline to get in what we need to manufacture before we need it.

• It looks like we'll be ready to be scaling up manufacture in a few days.

So it seems timely to start thinking about how we pay for the things we need to pay for.

That seems to require some kind of setup to receive money and do appropriate accounting things to ensure everything is transparent and we can't be criticised for misusing funds etc.

How would we do this? Who can take pole on this?

The Verkstan design has a different hole spacing to the Spanish, Prusa, and my laser-cut design. Having two different visor hole spacings is going to cause no end of problems, so we should standardize on one.

The Liverpool Uni design seems based on the Prusa one, so once we've got one of them printed to compare, we probably need to mod the Verkstan design (or maybe pick the right option - there are a few with different hole spacings, but the one we're printing seems like it's already the nearest to what we'd want)

Flagging a bit this end but wanted to highlight some of the operations groundwork that's going on.

@zarino and @JackReason85 have setup a workflow for orders in the DoES Team Trello. Link

We are currently working on a first come first served basis. Might want to change this down the road and look at prioritising based on clinical impact/need but that opens and shit ton of questions and right now, want to keep questions to a minimum.

@amcewen can you email me the orders that you have and the dates that they were made?

Anyone else who has had verbal requests, please email them to [email protected]

For each order, we need the information that's set out here in the request form. Link

Keep peddling 👍🏼

I just got off a meeting with the other 3D Crowd (3dcrowd.uk) coordinators (I am coordinating for the North West).

I'm going to keep a record of comms. here to keep our local effort aligned with the national effort.

Takeaways:

• They have an ordering and delivery system in place now which is starting to be used by coordinators and sub-teams.

• DoES are probably the hub for the North West at this time.

• After a period of a few days they have 190,000 ordered mainly from NHS addresses which gives an idea of the scale

• They have a deal with DHL for free shipping to the central distribution hub but not to individual maker addresses at this time

• We should probably merge the ordering system we spun up into the national system

• They have 80,000 visors printed and are suppling them in batches of 40 to makers/makerspaces who need them

• As we have a visor cutting capability we should probably not order those for ourselves unles we have to so as not to exhaust their stocks

• Visor bottoms should be rounded off to remove sharp edges.

• In general they advise against using OHP transparencies for makers who don't have a capability to cut them out properly (as it's fiddly, you can get cut etc.)

• They are advising that people use PETG but people can use PLA, as these are supplied as single use visors used at the wearer's own risk, "better than nothing"

• The army are in the process of setting up a 3D print farm of 200 printers doing the same as the rest of us

• We want to reach out to the education communtiy but need to make the system solid first or risk being overwhelmed.

One of our first two orders is for 220 of the 3DVerkstan model.

@mdunschen any chance you can do me a stacked version of that, so I can leave it running overnight? (The 7-stack of Prusa's seemed to work fine!)

Each one takes ~44 minutes, so I guess a stack of 16 (assuming that's less than 20cm high) would be good.

A stack I can stick on tonight would be awesome...

Then, they also had a bit of feedback on some improvements they'd like - if we could fill in the recess in the top of it so it's easier to clean, and ideally make the curl at the end of the arms a bit more open - again to make it easier to get in to clean, that would be great. The source for the design is Faceshield.nu, but I couldn't spot anything other than STL files for it...

I have seen in the back and forth that we need a specific type of plastic for the visors.

I don't know an awful lot about this stuff, but looks like it could be PETG (link)

Mc reckoned we have enough to turn around a palettes worth of visors.

The suppliers of this plastic have run out in most places.

Questions:

1. Is it PETG that we need?
2. Are there likely to be local firms that are sat on a piles of PETG in their inventory?
3. Are there any other materials we need that are in short supply

I wouldn’t know where to start, but if someone could point me in the right direction of firms that will use this, I can reach out to directly and through network to see if peeps be willing to donate // sell at cost.

There are Creality Ender 3 printers on eBay for £100 - £120.

Is it useful to buy in some printers?

If so are Ender 3 printers big enough for the PPE eye protectors we will make?

@amcewen ?

Kicking off this issue with this tweet:

ref: https://twitter.com/jeromelebel/status/1244052594202480645?s=20

ref: https://www.premium-forum.fr/viewtopic.php?f=5&t=2199

Placeholder for any specifics people need to know about printing on Creality printers

In the original issue @KarlDunkerley did some good digging out possible suppliers and prices. We should stick them somewhere - a new section in FaceSheild.md?

And then we can extend that as we go along.

Natalia was on a call 8 NHS medical doctors last night, all working across the country.

When they looked at the designs of the visors they thought that it would be optimal if the visor came down to the bottom of their chins vs stopping at their nose.

Why: extra protection from splashes and aerosols. Also offers some level of protection if we have no masks.

No one really followed up with me about the fund we'd need to get this started.

So thinking of rounding off at £10,000 target.

Give us money to do things like I set out here (link)

DoES PPE — GoFundMe

We’re working with hopsitals in the Liverpool City Region to produce effective, low-cost visors, to help healthcare professionals keep doing their job throughout this crisis.

But to really ramp up production, we need your help and your donations.

A growing problem

Healthcare workers across the country are putting themselves and patients at significant risk of the covid 19 infection because of the lack of protective equipment (commonly referred to as PPE).

Lack of PPE related deaths are beginning to rack up. Link, Link and Link.

If this continues, hospital wards will become dangerously under-staffed, as infected healthcare workers are forced into self-isolation to protect the public.

Lots of hospitals are reporting huge increases in their consumption of PPE. We’ve heard from a number of concerned procurement teams—the people responsible for sourcing things for healthcare organisation—that they think they will run out soon.

Rolling our sleeves up to help out…

At DoES PPE, we’ve spun up a project to tackle this problem; starting with producing protective visors for healthcare workers right across the North West UK.

Some highlights:

• A number of NHS doctors from different specialities have contributed to the visor designs.
• We have designs that enable us to accelerate production using laser cutters (x10 faster than 3D Printing).
• We have the production facilities at DoES Liverpool, and the broad network of makers in our community, to really ramp up the supply of PPE items.
• We’re connected with clinical directors at Alder Hey—one of the largest children’s hospitals in the UK—who will help us distribute PPE across the region.
• Liverpool Heart & Chest Hospital, East Lancs and Manchester Clinical Communion Groups are also in touch with us for PPE supply.

We need your help

To help us buy:

• The materials we need
• Maintain the machinery we use
• Package and deliver the items to hospitals and independent healthcare workers
• Pay a modest living wage to the people working through day and night on this

We need your help. Any help is a help.

All donations go to one important cause; getting essential PPE in to the hands of healthcare workers who are risking their lives to save yours.

We're learning a reasonable amount about different designs, and trialling them. We'll need to work out what is acceptable to the local NHS services that we'll be delivering to. It would also be good to discount any designs that we've worked out we won't be producing (e.g. the Spanish design is looking less likely due to #14 but we haven't done much testing of any of the designs yet).

@MatthewCroughan has suggested that we set up the 3D printers so we can have them knock the finished print off the bed and start the next, so they'll run as a production line to start new prints when no-one is around.

We should work out how to do that, and jot down the steps so we can set up other printers to do that too.

We’ve pretty much spun up a manufacturing operation in just a few days.

There are a number of key jobs-to-be-done, with key people working those roles. I've had a crack at pulling a simple process map together, noting down who’s working each role underneath.

Raising money & profile

• Project Coordinators @afroleft @ajlennon (@amcewen focused on production)
• External Coordinator @ajlennon
• Crowdfunding @afroleft
• Corporate Sponsorship: ⭕️ vacant
• Marketing Hannah Forbes
• Press @afroleft
• Website @afroleft and (@zarino now leading)
• Social media Hannah Forbes
• Video Production Stephanie Moxham @ajlennon

Managing the dollar

• Finance, sign offs & project accounting - @mjamjoum @amcewen @afroleft

Bringing the goods in

• Buying @mjamjoum & @amcewen
• Inventory management (@DuncN poorly 🤕) @plastictactics now leading here.

Orders > Processing > Fulfilment

• Capturing orders @JackReason85
• Order workflow design @zarino & @JackReason85

Design

• 3d printed and laser cut designs @amcewen @KarlDunkerley

Production

• @amcewen
• @KarlDunkerley
• @JackiePease
• @vwNeed3dUK

📦 Packaging & dispatch

Lyn Heron --> [email protected]

Delivery

@DoESsean

Can someone jump in and try and blag a free deal with DHL or similar?

Probably missing people, probably added wrong people here and there. This is just how key people looks like from my vantage point.

Can you let me know if this looks accurate or not? Feedback welcome.

Should we produce gowns now or in future

There is apparent current need:
https://www.hsj.co.uk/im-losing-the-will-to-live-god-help-us-all-despair-of-nhs-procurement-chief/7027266.article

Spent this afternoon pulling this together --> https://doesppe.netlify.com

Job to be done: Give me a way to find out more about what you’re working on, so I can find out how I can help.

This is essentially a sign post landing page that we can send every one.

⚠️ Please don't share this URL. Going to coordinate with @johnmckerrell to get ppe.doesliverpool.com up shortly.

We need to add @ajlennon’s video that he shot with Matthew. As soon as it's up on Vimeo, give me the link and I'll add it.

The website’s source is hosted in DoES GitHub incase I get hit by the bus virus.

This is just a first swing, things we want to add:

• Background, why are we doing this?
• Progress, what have we shipped? Any success stories?
• Press links
• Corporate donation package
• Social media links
• Our GoFundMe campaign once she is up (working on a Pitch tomorrow first thing, will stick in here for review)

Hit me with your feedback

So this design...

...could be improved. This photo is the initial version, I've already made a few tweaks but still:

• the band against your head isn't very breathable.
• the sides go quite far back, compared to the Prusa design (now I've got a printed one of them to compare with). Modding that would use less material and cut a tiny bit faster
• the band for the visor sits quite far out - almost twice as far as the Prusa design, and about 1-2cm further than the laser-cut acrylic design we've tried
• I've got an idea for better securing the "loose" ends of the bands together
• it would be good to be able to use the "4-hole-punched visor" design with it, as suggested in this comment from @RussCoty

Radio 4 interviews this morning suggesting we’re on track for a peak mid April. Plus more healthcare workers dying, lack of PPE looking like a cause. (link)

With this in mind, I wanted to get a handle on where we’re up to.

I've set up a Github project—essentially a simple kanban—so we can look at what’s outstanding, what's progress and what's over the line.

With a bit of prioritisation, we will be able to organise ourselves around the next most important thing to get these things in to the hands of healthcare workers.

Unless there's a good reason not to, I'll jump in on threads to ask where they are up to so that we can get issues over the line/drop one's that don't matter.

If you think this makes sense, please just drop me a 👍🏼

Here's the project (link)

@KarlDunkerley, Adam Floyd and others have been coming up with exceptional "no print/cut" designs which could in my understanding be assembled by hand by volunteers.

From talking to Karl if it takes 5 minutes to make a visor then

• one person can make 200 visors a day (say)
• 100 people can make 20,000 visors a day.

[Edit: if we can hit Karl's expectation of 2 mins we may be looking at]

• one person can make 30 / hour => 240 visors a day (say)
• 100 people can make 24,000 visors a day.

Those kinds of numbers start to put a dent in the massive demand for PPE from NHS medical practitioners and community workers (social care, food delivery, shop workers, posties, etc.)

I think I can find a location for assembly and I think I can reach out to find volunteers (for example students are sitting around doing nothing).

It feels like to achieve this we'd need

• finalised design
• buy in by medical establishment
• straightforward build instructions

Then I can reach out and set the wheels in motion.

Is this a good idea? Can you help me?

Here is a link: https://a360.co/2WOksJn to a solid model I created from visor-pp.dxf by extrusion. It needs more work: The tabs for attaching transparent sheets are missing in extrusion, but exist in sketch. My aim to to add a manufacturing toolpath that could be used on a CNC router.

Expand this section of the FaceShield page for each of the three 3D printed and two laser-cut designs.

For each one add:

• A photo of it
• Link to the video, if we took one
• Link to design files (and source)
• Bill of materials (what's needed to make it, how much of each material, etc.)
• Rough ball-park cost
• Time required to construct one
• A view on the ease of construction
• Any existing medical reviews or sign-offs

I am currently receiveing external contact of 3 kinds:

• Healthcare providers wanting PPE
• People with 3D printers who want to contribute and can abide by the 3dcrowd.uk / Covid Volunteers UK requirements
• People with 3D printers who want to contribute and cannot abide by the 3dcrowd.uk / Covid Volunteers UK requirements

For each of these groups I would like to know should I direct this to:

• 3dcrowd.uk / Covid Volunteers UK
• 3dcrowd.uk / Covid Volunteers UK and also store the details (option below in addition)
• Store it somewhere in this github
• Make a google sheet and store it there
• Forward the info onto a specific person
• Something else

I believe this is related to #18 but I do not see an authoritative conclusion on there and would like one.

Thanks!

This is a follow up issue. I will be editing any footage submitted together to produce marketing material that looks nice.

Ideally if your phone can, record in 4k. Message me if possible to get access to a Nextcloud instance in order to submit footage of a substantial filesize.

You can also ping me on twitter @MatthewCroughan in order to contact me, or email me at [email protected], alternatively message @ajlennon who will forward things to me.

thanks @MatthewCroughan — deffo want to capture some footage of the production and dispatch to healthcare workers.

That would give prospective donors more confidence in donating to us.

Originally posted by @afroleft in #33 (comment)

@ajlennon I mean in the coming days and weeks.

We'll need footage of:

• Multiple 3d printers in action
• People processing items
• Dispatching of the items
• Hygiene procedures
• Planning and documentation occurring
  • For example. An over the shoulder of Adrian planning out a page on github, at his desk.
  • Paper work printed off that shows a guide for procedures

Stuff like that. If anyone thinks of more scenarios and footage that would be good to add, perhaps we should make a new issue to store it.

Originally posted by @MatthewCroughan in #33 (comment)

Have we got a figure for what the Prusa / Verkstan masks are costing to produce and what we are selling them for (or if we are giving them away what we are suggesting as a donation to cover costs) ?

I'm not sure what help we need yet, but probably lots.

When we get to the production phase there'll likely be laser-cutting, running 3D printers, hole-punching OHP sheets, bagging things up.

However, there's also sourcing materials (once we know what's wanted); "gardening" the issues and documentation here; finding relevant info elsewhere and relaying the important bits here...

I figured it might be useful to have a general help issue that people can volunteer on (feel free to dive in on any specific issue too though!), so that's this one. Hello 👋

I would like to contribute to the information in this project.

(For example, I feel it could be helpful to add this mask design https://www.protohaven.org/proto-shield/ to a list of laser cuttable designs, not evaluated).

I notice there is collaborative information in the "code" and the wiki. I can't edit the "code" or the wiki.

• Is it preferred to use the "code" or the wiki?
• How should I / other contributors request access / suggest changes?

Thank you!

Hello team,

Just want to introduce myself. I am Mazen - an accountant. Tom told me about the amazing project you're working on and I thought that I'd love to help.

A few quick questions I'd like your help with (and apologies if some of these questions have been answered in other threads, just jumping in now):

1 - Do we have any funding / how does crowd sourcing work (i.e. does it transfer to someone's personal account, etc.) and have we gotten any funding yet? If we are only going to be transferring in £8k - £20k then a personal account may suffice.

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2 - Who should be authorised to do what from a disbursement stand-point (I as the accountant can do it, but from a controls perspective should likely have someone else I get a stamp from before anything goes out / also from audit perspective).

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3 - What is my expected role in fundraising? (i.e. am I involved? Or do I just manage the money?)

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4 - Will I be required to set-up a separate organisation (i.e. should we actually create a not for profit for this?) - Costs like £100 if we're interested? Otherwise we could set ourselves up as an unincorporated association in the U.K. - in that case we don't really have to do anything, but in the case we make a "profit", we have to pay taxes on it.

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5 - Any excess money, where is it going? (i.e. we state any donations above and beyond go to X charity?

My number is also +44 7469 033 098, if anyone feels like giving me a call and wants to start trouble shooting somethings. I recently moved into recruitment and its a bit slower so happy to jump on anything you need a hand with.

Thank you,
Mazen

This issue is just for what we actually need to source. For discussions on what we may need to source please go to #7, #15

Items we have sufficient stocks of (enough for >20000 visors) are crossed out like this

Q. Where are the best places to get this stuff?

Eye protectors / Visors

3D printing

• PETG (preferred) - 1.75mm and 2.85mm sizes (better we are advised as can be sterilized, but maybe harder to print with)

  • https://www.filamentive.com/product-category/rpetg-recycled-petg-pet-3d-printer-filament/ They give a 30% discount to help the Corvid efforts if you put PPE30 code in at the checkout, but they're getting low on stocks at the moment
  • https://shop.3dfilaprint.com/pet--petg-202-c.asp (filter by FilaPrint brand is probably best)

• PLA - 1.75mm and 2.85mm sizes (is this appropriate - everybody is printing with it so it better be)

• Buttonhole elastic - (I think) anything around 16mm-20mm will be okay

  • https://www.ebay.co.uk/itm/Button-Hole-Elastic-Waisband-Black-or-White-16mm-19mm-and-25mm-Widths/332755556624

• Visor material

  • 140-500 micron thickness, clear, any of PVC, PETG, polypropylene, polyester. If it's pre-cut to A4, even better.

Laser Cutting

• Polypropylene sheets - 0.5mm-1.5mm thick (we've been prototyping with 1mm, which works nicely, but anything in that range will be okay). The laser suppliers page on the DoES Liverpool wiki is a good starting point for sources.

  • https://www.kitronik.co.uk/materials/polypropylene/0-8mm-polypropylene-sheets.html
  • https://www.hindleys.com/polypropylene-sheet.html
  • https://www.trentplastics.co.uk/engineering-plastics/polypropylene-rod-sheet/polypropylene-sheet-natural
  • https://www.tilgear.info/materials/plastic-materials/polypropylene-sheet

• Visor material

  • 140-500 micron thickness, clear, any of PVC, PETG, polypropylene, polyester. If it's pre-cut to A4, even better.

Foam Visors

• Approx A4 sheets of clear PETG/Polypropylene/PVC/Acetate in 140/180/220/240 micron.
• 25mm Elastic Strip
• EVA/Plastizote foam 10/12mm thick with reasonably smooth surfaces eg Gym/Yoga floor mats.
• 23/13 or 26/6 staples
• Stick on Velcro 20mm

Useful equipment includes;

• 18mm Snap Off Knife
• Heavy Duty Stapler capable of stapling 100 sheets of paper
• Standard office stapler
• Round Corner Cutter or 10mm Corner Cutter Pro Punch R10

Cleaning Materials

• Some Hibiscrub for cleaning things down.

Packing Materials

• 26x40cm (ideally ziplock) plastic bags for bagging up 3DVerkstan frames
• Larger than 40cm (ideally ziplock) plastic bags (the 26x40cm bags above includes the bag handle in that dimension) for the laser-cut frames
• Larger than A4 (ideally ziplock) plastic bags for the visors
• Packing boxes (a bit bigger than 40cm)

@johnmckerrell can do this when he knows where to point it at (from @afroleft ?)

As mentioned in the readme, it seems diy masks can provide some protection, and are also in short supply. Some seem to have space for filters (don't know if these are readily available either). We might be able to provide these to others, or might be useful to people working on our project.

Via Naomi Wu on Twitter: this sits "over the head and shoulders of a patient as they are intubated by a [health care] provider. The box acts as a protective shield between the patient and medical staff ... can be cleaned with bleach or alcohol solution in betweeen patients":
https://intubationbox.com/