This goes under the vent to catch things, such as cat food or children's small toys.
Two models, one is split in half and arranged so that would fit as one single print on my build plate.
Original model used to make this:
https://www.thingiverse.com/thing:6267068
Floor_Vent_Register_InsertTrapFilter.stl | 1.8MB | |
Floor_Vent_Register_InsertTrapFilter_Halfs.stl | 1.8MB |