That is brilliant, they look to have just got it done instead of 'being in discussions with stakeholders' (Money??) as quoted by the F1 community.
They should be doing these as a "Heathkit" I'm sure they are put together with "off the peg" parts. I'm not thinking all singing/dancing hi tech ventilator, I'm thinking something to give you a chance when you find out there are 10,000 waiting in the queue for the 25 ventilators that are available.
If you look around, repurposing existing technology is the way to go. I have no idea of what's involved in these things but as an example a five minute search produced a cheap scuba set. For £40 you get a first and second stage regulator and a pressure gauge. https://www.ebay.co.uk/itm/DIDEEP-Mini- ... 0005.m1851
original brief from the Government: give us a machine that can pump 400ml of air into the lungs 12 times a minute, with variable speed and pressure settings.
That is brilliant, they look to have just got it done instead of 'being in discussions with stakeholders' (Money??) as quoted by the F1 community.
Yes I have been in contact with them today and it seems they came up with a very similar concept to me. And knocking out 100 a day is brilliant. I have asked to share designs between them and me to see if any improvements can be given either side. If they agree then I will discuss with them about opening up the designs publicly so that more places can make them.
3D printing isn't the way to go in my opinion. 3D printer are prototypers. There are designed to make one off's, relatively quickly. But they fall down massively with large scale production because they are far far too slow. The parts printed there for 1 ventilator will take several hours to print. Just for 1....
I had a similar design planned out in my initial design concept but it used off the shelf polycarbonate tube and sheet. That way you are just cutting them to size and can produce at a much higher rate.
3D printing isn't the way to go in my opinion. 3D printer are prototypers. There are designed to make one off's, relatively quickly. But they fall down massively with large scale production because they are far far too slow. The parts printed there for 1 ventilator will take several hours to print. Just for 1....
I had a similar design planned out in my initial design concept but it used off the shelf polycarbonate tube and sheet. That way you are just cutting them to size and can produce at a much higher rate.
I agree - it's not idea and it doesn't scale up well. Looking at that design, the slowest part to print would be the "cylinder" which may take a couple of hours even at lowish quality. Would be far quicker to cut of a foot of plastic drain pipe and mill out the slots/holes. Personally I would go with a rotary variable speed motor and a crank to lift the bellows rather than a pneumatic ram.
On the other hand - there's thousands of 3d printers about now and gcode files can be downloaded easily anywhere. I've designed stuff here, sent the gcode to the USA and been printed over there within an hour.
Prusa run a "farm" printers to produce more printers.
