Door Stop
A tapered, ribbed door stop modeled in Fusion 360 for 3D printing.
A wedge that tapers to a thin leading edge, so it slides under a door and jams tighter the harder the door pushes against it. The side walls are ribbed for grip against the floor, and the body is hollowed by two circular bores, which cuts print time and material without touching the load path along the taper.
The downloads above are the printable STL and the STEP source.