Thingiverse
check valve 2 - JVC - Sand Dollar Membrane Valve by MohamedMostafa
by Thingiverse
Last crawled date: 4 years ago
the original designer
CAMERADACTYL Cameras
In this video I go through a few different things
https://www.youtube.com/watch?v=ToI8-92lDpA&t=300s
FIRST: TO BE CLEAR: These designs ARE NOT replacement parts for the ventilators in hospitals right now. DO NOT print them out and bring them to a hospital. These are component precursors to open source, and crowdsourced DIY ventilators that people are working on all over the world. DO grab the CAD files and use them in your designs. I hope to 1: speed up people designing larger systems, by designing components that they can just grab and use, rather than redesign them from scratch, or wait for off the shelf parts. Amazon just shut down incoming warehouse deliveries of many items, I would assume plumbing valves are on that list. And 2, which is related to some limited e-commerce right now: I hope to make some 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 if shipping and lead times get very long.
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...
make 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:
All prints at 0.4mm nozzle, 0.3mm layer height, in PLA, but PETG is better. No support material is needed for any of the parts.
print the lock nut nut at 30% infill, 4 shell layers all around, top and bottom
Print the other parts at 10-15% infill, 4 shell layers all around. If you can, turn on the option in your slicer for "Avoid Crossing Periiters"
Print the check valves with the 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 it works better this way.
Thanks for reading and watching. I hope that 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 and test some out and get a working prototype and share it back with the group.
Stay safe, and have fun building!
CAMERADACTYL Cameras
In this video I go through a few different things
https://www.youtube.com/watch?v=ToI8-92lDpA&t=300s
FIRST: TO BE CLEAR: These designs ARE NOT replacement parts for the ventilators in hospitals right now. DO NOT print them out and bring them to a hospital. These are component precursors to open source, and crowdsourced DIY ventilators that people are working on all over the world. DO grab the CAD files and use them in your designs. I hope to 1: speed up people designing larger systems, by designing components that they can just grab and use, rather than redesign them from scratch, or wait for off the shelf parts. Amazon just shut down incoming warehouse deliveries of many items, I would assume plumbing valves are on that list. And 2, which is related to some limited e-commerce right now: I hope to make some 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 if shipping and lead times get very long.
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...
make 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:
All prints at 0.4mm nozzle, 0.3mm layer height, in PLA, but PETG is better. No support material is needed for any of the parts.
print the lock nut nut at 30% infill, 4 shell layers all around, top and bottom
Print the other parts at 10-15% infill, 4 shell layers all around. If you can, turn on the option in your slicer for "Avoid Crossing Periiters"
Print the check valves with the 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 it works better this way.
Thanks for reading and watching. I hope that 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 and test some out and get a working prototype and share it back with the group.
Stay safe, and have fun building!
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