

I don’t know a thing about IP laws, so I can’t judge what shape of plastic is required to provide a basis for an IP rights violation. The reason I linked this was that I would take this entire story with a huge grain of salt, considering this company did this before and has apparently not learned all that much from that experience.



Regarding the oxygen supply: I usually tunnel towards a colder area and build a self-powering oxygen machine there. It’s basically a room with electroylzers and gas pumps at the top and bottom (or a gas filter) to separate the oxygen and hydrogen. The hydrogen then goes to hydrogen generators, the oxygen is pumped into the base. Another important bit is to make sure the CO2 has a place to go (downward) before you can deal with it.