Summary

What is it? it's like a showerhead/water dispersion tool for your coffee dripper (like the Hario Drip Assist)
Based off of the gabi drip master b (which I don't own) from the pictures that I looked at. There are notably cylinders sticking out from the bottom that will make it hard to print.
Untested -- holes are probably too big (1.5mm)
https://cad.onshape.com/documents/88ded7fe9c73ca1e07d089f7/w/99f6acec3af50da25d5cb943/e/b7a0eb95c8c6aacea8598fc3