Oxygen splitter

grabcad

This 3D printable design features a 200 microns resolution and boasts 20% hexagonal infill using PLA filament (appearing transparent in images, so no holes). It's untested with ABS but should work. Proper direct cooling is necessary during printing, as well as minor adjustments to be made within a few days. Printing time is approximately one hour on my experimental printer at 200 mm/s. An update: the splitter chamber works effectively, showing no measurable leaks (tested by manually sealing orifices and blowing through the third with a compressor). The design employs three walls and four top/bottom solid layers for enhanced durability.