Corona Virus - CAD+3D Printers useful in times of trouble

A lot of projects are going on all over the world, here’s one of them. They want specialist to join the design work in making the final version of a very cheap device made out of commonly available material:

https://www.europeanscientist.com/en/public-health/an-open-source-respirator-for-40-euros-from-a-3d-printer/

// Rolf

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What is a ‘regular redneck’? We have plenty of “plain ol’ rednecks” around here on the Redneck Riviera.

Regular people, I’d say.

// Rolf

So not this guy then…

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This Italian radio interview to the 3D modeler
Snorkling mask (some pieces).

A fast render of // Rolf link [ventilaid.org] project at the state of the art right now.

Please do not print or use the prototype for medical purposes! The clinical testing process is still ahead.

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Here is a picture of the simplest sollution I could find. It’s called bagging and requires manual operation, so not sustainable for long use, but is an example of a “redneck product” gone professional.
(Note: this model is a bit more advanced since it has option for extra oxygen (I believe))
image

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Here’s another, more clinical, proposal:

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Here, an Italian doctor of intensive care explains at the radio that
90% of the patients at intensive care die. This is in the north of Italy where there is more equipment.

Ventilators: gives very low level of success.

For molecular biologists och researchers in drug development; My son* just uploaded a project package (ready to run) on GitHub by which you can run a Probabilistic Target Profile (PTP) against the; “67 druggable human protein targets reported in [this study] to develop predictive models for them, based on binding data for those proteins in open datasets.” End of qoute.

Asking my son what this is all about, he replied, in laymans terms***: “Useful for creating machine learning models for the chemical interactions in the body which corona virus interacts with”

Due to his personal experiences in the “field of suffocating” (…) and his education in the field and tools he developed for massive data processing in drug development and machine learning (battle tested, opensource and part of the package in the download**) he has special interest in the development of protective gears and drugs battling the virus.

Similar tests**** are performed also to identify risky substances in drug development where they test, one by one, which substances binds well (or not) to target protein, and which parts of the chemical structure is contributing to the binding. So this same approach is useful also in finding out which proteins interacts with the corona virus, and how.

Spread the word to experts in the field.

// Rolf

| * Affiliated with the pharmio team at Uppsala University. (same guy I mentioned about earlier which had a close call due to allergic shock).
| ** https://scipipe.org/ (used also by NASA)
| *** In Swedish: “Bygga maskinlärningsmodeller för kemiska interaktioner med de proteiner i kroppen som coronavirus interagerar med.”
| **** https://www.frontiersin.org/articles/10.3389/fphar.2018.01256/full

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Vacuum cleaner and hand dryer company found a new niche. Well, who would have guessed…? :slight_smile:

// Rolf

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This is not related with 3D printers but with this the pandemia
As a solution a PC CPU can help. You can help to unfold an antivirus from home.

https://foldingathome.org/start-folding/
Video Instructions:

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Moving air done differently.
For inspiration only, I have no ide how a system like this can withstand use and abuse, but one idea can lead to another:

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TASTY SOLUTION ABANDONED

Absolutely. That’s what brainstorming is good for.

Most people may have heard about one classical example of brainstorming which started out pretty “wild” but which eventually ended up in a useful solution. I heard it perhaps 20 years ago and probably have forgotten some details, but the story was about ice and snow on power lines and goes something like this:

In Arctic areas ice on the power lines means serious problems (I grew up 120 km north of the Arctic Circle) since the power lines can fall to the ground under the accumulated pressure.

So how do you fix that, with hundreds and thousands of miles of power lines at risk of falling to the ground?

During a brainstorming session some truly wild ideas about how to remove the ice was put forward, one idea sillier than the other. For example; "Attach pieces of meat on the power line poles, a bit above the ground, so the bears would try climbing to reach it, and so they would shake the poles and the snow and ice would start falling down from the power lines.

Not all were convinced about the feasibility of the idea, but the brainstorming session at least produced some “food for thought”. Then suddenly one guy got yet another idea, so he said (something like):

" - Forget about the bears. Why not just take a helicopter and fly very low above and along the power lines and so the pulsating air pressure from the rotors will blow off the ice and snow, with high speed at that."

And that’s what they did, and it worked very well. Glad that they skipped the tasty solution for the shakier one.

// Rolf

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If you like brainstorming and bashing up prototypes with what you have to hand, you might enjoy this Canukistani bumblef#cker…

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There are many projects out there that use 3d printing. Gustavo has already shown that you can get the same result 80 times faster without 3d printing and lasercutting. If you really want to be able to build everywhere and as fast as possible people should better think of old proven production methods like sheet metal, punching, welding. Use standard metal materials as much as possible. With cnc punching and lasercutting of metals you can produce a lot of items very cost effective and fast. If there are no machines, you can still build the same designs with an angle grinder and a drill. Keep it stupid simple. KISS principle.

Yes. This thread started with a 3D-printing example, but if you read through the thread it has several posts defending the idea to “use what you have, if you must. Period.”

// Rolf

https://freebreathing.org/public-authorities/

This already looks great. Good price also. I’m just wondering if this is really as simple as possible to build, if you think about local production somewhere in Syria or Sudan…