Window AC Plenum Duct Adapter

Covers for a window AC unit to redirect the cold air out to a 4" duct, as well as another plenum to cover the warm air return and funnel that back from a 4" duct.

The top and bottom plenums are split into two pieces for support free printing with a Bambu P1S, using PETG for UV/moisture resistance. The duct hole accommodates a 4" diameter duct with a flat surface to glue on a duct interconnect flange (link to the model: https://www.thingiverse.com/thing:6985213)

The plenums themselves are measured to fit over a Haier window AC unit, and to be caulked or taped into place. This is a version 0.7 - everything printed all right and lines up, I just haven't hooked it all up to test yet, the models should be pretty easy to resize for other window AC units.