Ventilator Prototype

thingiverse

This is a prototype for a printable breathing ventilator. It only covers the pump and valve portion, leaving all power, electronics, and programming to the discretion of the maker. Testing and development have been minimal so far; this project isn't mature enough to be trusted with someone's life. Its purpose is educational only. Do not attempt forced ventilation without medical professional supervision. Hardware List: - NEMA 17 motor and associated electronics - GT2 timing belt,6mm wide, ~500mm - GT2 timing belt pulley, 20 teeth - 2 GT2 timing belt idler pulleys, 5mm bore - 2 hardened guide rods, 8mm diameter, 430mm minimum length - 2 hardened guide rods, 8mm diameter, 100mm long - 7 linear ball bearings, LM8UU, 8mm diameter - Silicone rubber sheet, shore A65, 6in X 6in X 1/16in or similar - Buna-N O-ring cord stock, 70A duro, .139in diameter, ~1000mm (or 2X 2-251 O-rings) - Neoprene adhesive foam tape, 1/2in X 1/8in thick, ~650mm (applied to piston and bridge flange for sealing the 4in flex tube) - Wire reinforced PVC flex tube, 4in diameter, ~300mm - 34 stainless steel lock nuts, M3 size - 66 stainless steel washers, M3 size - 8 socket/button head cap screws, M3 X 10mm, stainless steel - 16 socket/button head cap screws, M3 X 12mm, stainless steel - 6 socket/button head cap screws, M3 X 16mm, stainless steel - 10 socket/button head cap screws, M3 X 20mm, stainless steel - 2 socket/button head cap screws, M3 X 30mm, stainless steel - 3 stainless steel lock nuts, M4 size - 6 stainless steel washers, M4 size - 2 socket/button head cap screws, M4 X 20mm, stainless steel - 1 socket/button head cap screw, M4 X 30mm, stainless steel - 2 stainless steel lock nuts, M5 size - 4 stainless steel washers, M5 size - 2 socket/button head cap screws, M5 X 30mm, stainless steel