Functional SCUBA Low Pressure Demand Regulator v3.6

This is what 3D modeling and 3D print rapid prototyping excels at, We were able to take some used bicycle tubes, gas hose, and a cut supermarket snorkel to make a functional if crude prototype of an idea based upon a 20 year old memory, and we did it all in the same afternoon. From the press this project has since attracted we reasonably believe this may be the first ever amateur designed and built functional 3D printed low pressure regulator.

WARNING!! I DO NOT GIVE PERMISSION FOR HUMAN OR