Ventilator
Description
**Disclaimer** This machine is a work in progress and not to used as is, in a true hospital. The design intent is simply about the mechanics of the machine, and the 3d printed structure. --------------------------------------------------------------------------------------------- This Ventilator is an Experimental design done by Mitch Bahneman, a student of Mechanical Design at Chippewa Valley Technical College. The design intent is to offer a mostly 3d printed, simple machine which will function as an emergency BVM compression machine. It uses a basic adult sized BVM(bag valve mask), which are readily available and simply pumps it as a human hand would, nothing else. The electronics used to achieve this simple task are basic off the shelf parts and can be obtained for less 50$. In the future I hope to have this machine operated by a microprocessor, flow-rate sensor, limit switch, and coding. Electronics List: As this is still in the testing phase this list will not be fully complete yet. *Motor* 2002-2005 Volkswagen Jetta windshield wiper motor *12 volt DC speed controller* 6Amp rated *6Amp Power Supply* ------------------------------------------------------------------------------------------------------- It is printed in 8 parts and will take roughly 3-4 days, using about 1.5KG of filament. I used PETG for strength but it might be possible to print in PLA or ABS as well. ----------------------------------------------------------------------------------------------------- To ensure the most strength I suggest Printing with the following settings: *Ventilator Base* layer height .3mm, line count of 5 at the walls top and bottom. 20-30% cubic infill *Arm Split1 and Arm Split 2* layer height .3mm, line count 4 at the walls top and bottom, 30-40% cubic infill *Pump Base and Bag End* dont need to be as strong, Layer height .3mm, line count 3, 20% infill. *Plunger* layer height .3mm, line count 4 at the walls top and bottom, 30-40% cubic infill *Short Arm V2 and Lng Arm V2* Need to be strong, Layer height .3mm, 100% infill
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