ANet A8 Printed Leadscrew

This is a Test for a 3D Printed Leadscrew
This is a square thread.
It is a flat screw you have to print it flat and diagonal on the surface
you need http://dkprojects.net/openscad-threads/ to compile the scad files

i used candle wax for better gliding

the setting is 800 steps per mm

I used this screw till christmas 2018.

As i started to experiment with 0.1 Nozzle size, i thought i need more resolution on the z axis. So i tried to make a new screw with 2mm/rev.

But the differe