Decide which designs we're going to produce

[amcewen]

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).

[amcewen]

@KarlDunkerley has some samples of the Spanish, Verkstan, Prusa and my laser-cut polyprop design, and some visors from our thin polyester.

He'll be seeing some friends who are medics, so hopefully will be able to report back their opinions.

[ajlennon]

Had this through from Alyssa Alabassi (surgeon) for review

https://groups.google.com/forum/#!topic/london-hack-space/41uNwWcPnPk

[ajlennon]

@wyn_griffiths who I think is working with North Wales Tech has just posted this brilliant design improvement

Currently working on stacking of the Verkstan design for higher yields overnight. Bridging is the keyCrossed fingers

ref: https://twitter.com/wyn_griffith/status/1243981565513863168?s=20

[JackiePease]

There's an STL with stacking Prusa visors too. At the moment it has 2 stacks of 4 which doesn't fit on the Ultimaker bed. I'm hoping @mdunschen will edit it to remove one of the stacks.

[ajlennon]

Have you seen these stacking ideas @MatthewCroughan ?

[mdunschen]

I'll get onto it tomorrow, sorry only seen this now. It's a great idea the stacking.

On Sat, 28 Mar 2020, 20:54 Jackie Pease, notifications@github.com wrote:

There's an STL with stacking Prusa visors too. At the moment it has 2 stacks of 4 which doesn't fit on the Ultimaker bed. I'm hoping @mdunschen will edit it to remove one of the stacks.On 28 Mar 2020 19:24, Alex Lennon < notifications@github.com> wrote: @wyn_griffiths who I think is working with North Wales Tech has just posted this brilliant design improvement

Currently working on stacking of the Verkstan design for higher yields overnight. Bridging is the keyCrossed fingers

ref: https://twitter.com/wyn_griffith/status/1243981565513863168?s=20

—You are receiving this because you are subscribed to this thread.Reply to this email directly, view it on GitHub, or unsubscribe.

— You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub https://github.com/DoESLiverpool/covid19/issues/15#issuecomment-605518265, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAGEV2ZZR7BFQSHFUD764XLRJZPXJANCNFSM4LVUJZMQ .

[amcewen]

The stacked Prusa print worked nicely, thanks for the file mod @mdunschen! (Although I've not separated them out into individual visors yet - will try to do that tomorrow).

As discussed in #14, we're dropping the Spanish design from our consideration now.

The covid-19 slack has settled on the Prusa RC3 as its chosen design; Liverpool Uni is using a slightly modded version of that; in the discussion call earlier with the PPE experts there was a strong preference for designs that kept the visor further away from the face... all of which point to using the Prusa RC3 as our preferred 3D printed option. I think we'll just be printing them from now on.

And alongside that we'll do the laser-cut and Karl's foam design.

[amcewen]

The stacked Prusa comes apart pretty easily.