150mm tractrix horn for GramiPhone

My print volume is only 150mm in the Z axis, so the GramiPhone horn was hard to print. It would have required a lot of support. This is a 150mm tractrix-shaped horn for the GramiPhone.

As uploaded, I had to glue the horn into the GramiPhone stand to make it fit without drooping. If you want to fiddle with it to make it press fit properly, I have also uploaded the python code that I used in FreeCAD to draw the cross section. Maybe a diameter of 4.2mm will work better than 4.1mm. You can use th