Attached are the STEP and F3D CAD files used for the Chamber Fan Muffler and the Poop Chute Baffle for the Bambu Lab P1S 3D printer.

The gains were staggering: over 20dB over pretty much the whole audio spectrum.

Details and instructions in this post: https://raphtronic.blogspot.com/2024/02/diy-fan-muffler-poop-chute-baffle-for.html

Happy printing to all !

Correction: no STEP file for the fan muffler, but STL instead. As the Bambu Studio slicer kept throwing a "132 non manifold edges" warning. And the Repair function did not seem to work. But importing STL made BS(!) happy...