I am a menace with my 3D printer. I really wanted some loop end caps to seal my loop when I’m not using it. This comes after the last time it had been sat on my work bench for a while, I set everything up, did a pressure test and started coughing. Understanding that either my just filled scrubber had not been sealed (it was) or the counter lung was dusty (it wasn’t) then the only remaining thing was my loop. As always I’d sterilised the hell out of it and let it dry after it was last dived, but maybe dust or something else had gotten in. I washed it down again with Chemgene and all was well on the dive the next day. Hence trying to find endcaps, as no one else seemed to have done this, and I couldnt get other branded rebreather ones to fit (what mutant size is the JJ!?) I made and designed my own. Get yours at makerworld.com/en/models…