Banding on z axis

[jmillerdesign 0]

Hello,

I'm having this consistently happen on all of my prints about the same height.

http://imgur.com/B9DmNXl

I've used the magnalube on the z axis, but I'm not certain what else I can do.

Thanks!

Jordan

[JohnFox 25]

That looks like the dreaded Z sticking problem. I had this and eventually cleared it by cleaning the two Z axis pillars completely free of oil. My theory on this is: The two Z roller bearings are supposed to roll up and down the pillars. If there is oil on them, they try and slide, causing a minor jam as the balls lock up. Since I cleaned the pillars I have had zero faults like this, ( although this is tempting the fates   .

Edited May 28, 2016 by Guest

[neotko 1,417]

It can be a few thinks or none at all

https://ultimaker.com/en/community/11123-z-axis-layer-error?page=last#reply-129326

[JohnFox 25]

It's all down to the quality of the bearings, the pillars and their tolerances. Someone in the forum gave me some info on high quality Japanese parts and I started to realise the difference between 'ordinary' bits and the ultimate. We get what we pay for.