check valve 2 - JVC - Sand Dollar Membrane Valve

thingiverse

Human: the original designer CAMERADACTYL Cameras In this video, I go through several key points. https://www.youtube.com/watch?v=ToI8-92lDpA&t=300s FIRST: To Clarify: These designs are not replacement parts for ventilators in hospitals right now. Do not print them and bring them to a hospital. They are component precursors to open-source, crowdsourced DIY ventilators that people are working on worldwide. Grab the CAD files and use them in your designs. I aim to speed up people designing larger systems by providing components they can grab and use instead of redesigning them from scratch or waiting for off-the-shelf parts. Amazon has shut down incoming warehouse deliveries of many items, including plumbing valves. I assume this list includes plumbing valves. Additionally, I hope to create alternative designs for already used components so that they can be used in place of off-the-shelf components if and when they run out or shipping and lead times get very long due to limited e-commerce. You can download or copy and modify the parts to the pump head valve body in this video here: https://cad.onshape.com/documents/5c9... Create a free Onshape account, and you should be able to easily modify some of the dimensions of this set of parts for use in your own project. Printing Instructions: Print all components at 0.4mm nozzle, 0.3mm layer height, in PLA, but PETG is better. No support material is needed for any part. Print the lock nut at 30% infill, 4 shell layers around, top and bottom. Print other parts at 10-15% infill, 4 shell layers all around. If possible, turn on the option in your slicer for "Avoid Crossing Perimeters." Print check valves with orifice plates flat against a clean glass print bed. These need to be smooth. Print the exhaust (labeled 'out fitting') with the hose barb nozzle against the print bed and the large threaded part of the funnel facing up. This is counterintuitive but works better this way. Thanks for reading and watching. I hope someone figures out a good solution for the rest of an Ambu Bag replacement. If you have some thoughts on it, please drop them in the comments; I'll try to test some out, get a working prototype, and share it back with the group. Stay safe, and have fun building!