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It’s almost 50 years since Apollo 13 lifted off onto what would become the definition of the ‘successful failure’, a mission where lives were very much at stake and the teams at mission control had to solve problems they’d not expected to bring the crew home safely.
I wanted to re-create the ‘adapter’ that the crew had to make which would allow the Lithium Hydroxide canisters from the command module to work with the Lunar module’s environmental control system. Using only the things they had on hand the crew had to ‘fit a square peg in a round hole’ so that they atmosphere would have remained breathable for the return
Some good references for this procedure are on NASA’s history site.
I 3D printed my canister prop using a design from Havazik, he was able to put this together in a couple of hours, I’d have taken days.
The 3D printer I use is a Prusa MK3 and it was a gift from Prusa Research, It was able to handle the filament running out and resumed after a power cut during the main print.