Z-axis bearings make scratchy sounds

Vertex 3D Printer Vertex - Assembly and user manual
1

Hi,

I just build the printer and the bearings for the z-axis (RJM-01-08) are making scratchy sounds, just like there is sand or rust in the bearings. I tried to slide it over the rods several times, but the sound is still the same. 1 sounds fine, 1 sounds really bad and the other two are making more sound than the ‘good’ one. With the bad one, you can feel resistance, the good one just slides down through gravity. The other 3 don’t, you have to help them down.

I tried to go the support page viewtopic.php?f=63&t=14788), but that page is unavailable.

Please advise what to do?

Regards…

2

Did you oil them before installing them?

3

I also had some bad linear bearings (missing or loosing balls). Ask for a replacement. The link you posted is working fine so try again.

4

Yes, I lubricated them and moved them up/down many times, but still no change.

The support site is working again and opened a ticket. Many thanks!