Quote Originally Posted by SteelCraft View Post
I built similar working power feed for Z axis and I faced a problem which made me stuck.

Lead screw nut (made from bronze) when knee going down starts vibrating a lot. Very loud, whole machine starts shaking. I tried everything even welding in again flange for nut to remove any missaligment but nothing helped.

It worked well only two days...

Lead screw don't run dry, it's oiled.

Do you have any ideas what else I could try to remove those vibration?
So for two days of use after you allowed for the re-alignment you had good turning, and then back to vibration?

Więc przez dwa dni użytkowania, po ponownym wyregulowaniu nakrętki, obroty były dobre, a potem znów pojawiły się wibracje?

Mark