We needed a shower drain with a height of about 3 cm and a vertical outlet channel which was difficult to find so I decided to print one.
Support material is printed inside and must be removed after printing.
Because of the size, wrapping can be an issue (it turned out it was not too bad for me).
I noticed that the top layers (facing upwards) are nicely finished compared to the bottom ones (where you see more loose wires) so it might be an idea to print it with the outlet pipe down (more support material need to be added in that case). It is designed in OpenSCAD, the source file is attached.