This little thing should ease making the horizontal stabilizer removable using a 4mm plastic bolt.
As it is a small part, it requires full infill printing and manual finishing of the inner thread.
It is ment to be placed in the fuselage (tube) and the stabilizer (nut), at a 45 degrees angle towards the bottom front of the fuselage, hitting the front of the tail protection.
The nut has to be trimmed to fit the place on top of the stabilizer
The bottom tube and its 2 placing walls are longer than required to allow ajusting in place.
on bricole tout, on touche à tout, et on s'inspire de tout ...