#79 Bagless 3D Printed Ventilator by James Zaremba
For a novel virus there is a novel ventilator! The operating principle can be seen in the diagram uploaded, the basic premise is that when the moving head piece is driven up the rack by the 2 motors there is negative pressure created in the chamber which draws in air and oxygen through the one way inlet valve. When the motors spin the other way and retract the head piece into the base the air in the chamber is forced out of the outlet valve (i'm sure many of you have seen on countless ventilator designs) into the patients lungs. The only parts that aren't 3D printed are the valves, DC motors and corresponding securing screws. I aimed to make this design as easy as possible to print and assemble, all that is required is plumbers pipe adhesive or a solvent based adhesive. The only parts that require gluing are the rack, motor brackets and valves. Unfortunately, I don't have access to a 3D printer so i cannot prototype it but I have attached all of the design files so I encourage anyone who is interested to have a go and document their results. This is the motor used https://uk.rs-online.com/web/p/dc-geared-motors/8347631/ and the mounting screws are 6mm long M3 Pan Heads.
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Apr 5, 2020 12:42
#80 Bagless 3D Printed Ventilator by James Zaremba
For a novel virus there is a novel ventilator! The operating principle can be seen in the diagram uploaded, the basic premise is that when the moving head piece is driven up the rack by the 2 motors there is negative pressure created in the chamber which draws in air and oxygen through the one way inlet valve. When the motors spin the other way and retract the head piece into the base the air in the chamber is forced out of the outlet valve (i'm sure many of you have seen on countless ventilator designs) into the patients lungs. The only parts that aren't 3D printed are the valves, DC motors and corresponding securing screws. I aimed to make this design as easy as possible to print and assemble, all that is required is plumbers pipe adhesive or a solvent based adhesive. The only parts that require gluing are the rack, motor brackets and valves. Unfortunately, I don't have access to a 3D printer so i cannot prototype it but I have attached all of the design files so I encourage anyone who is interested to have a go and document their results. This is the motor used https://uk.rs-online.com/web/p/dc-geared-motors/8347631/ and the mounting screws are 6mm long M3 Pan Heads.
Find more pictures on GrabCad
https://grabcad.com/library/bagless-3d-printed-ventilator-1
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Apr 5, 2020 12:46

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