P1P P1S Air filtration unit

thingiverse

I printed off the popular "Bento Box" air scrubber and was not satisfied with it's complexity, performance and customisability.The "Bento Box" air filter is shown using common GDSTIME 4020 fans, these are mediocre and the design is such that the wires must be routed out the bottom of the fan. I purchased some Arctic Cooling 4028 server fans which perform better and are quieter, however they were too tall.I think the designer of the "Bento Box" had the wires routed down (which causes stress on solder joints, looks ugly and is generally a terrible idea) did this to help seal the fan chamber.I opted for a baffle that presses on top of the fans to create a sealing chamber, and a negative pressure zone above the fans which helps them pull air through the carbon and hepa array.Unlike the "Bento Box", this entire filter uses only one screw to mount to the printer, no magnets, no heat inserts. It is entirely friction fit! Useful for fellow creators on a shoestring budget.Screw holes are provided if you wish to screw the fans in but I found the printed baffle sufficiently held them in place. I designed this around the Arctic S4028-6K fans.This is still a work in progress, when I am satisfied with the final design I will publish more information on it and the CAD files should you chose to redesign the filter.