8600 Nano : Wobbeling Y-platform

Yet I have another problem :
Wobbeling Y-platform due to Z THREADED ROD : I think the Z ROD isn’t straight and when a AUTO HOME order is given the whole Y-platform wobbels while going up.
[color=#FF0000]Click here for the Video that I made[/color]

Hi can the Z-motor freely on the horizontal plane?
If the Z-motor is tightened to hard it will not compensate any imperfection on the Z-rod

I loosened the bolts of the Z-motor … now it is better.