I made new 3D printed nylon screw nut for Z axis and it’s work very well, and smooth without wobble.
RIVKLE® blind rivet nuts – also known as clinch nuts – offer versatile solutions for fastening load-bearing female threads to thin-walled components. A situation, when cut threads are usually not an option. The animation shows the installation of a blind rivet nut with a knurled shank for improved locking.