Uneven Layers!

Hello guys.

What we can do about uneven layers??

I check the belts

i check every screw

i check the bed

i change extruder

im waiting to change also extruder motor

also im waiting the hotends to do the unicorn nozzle mod.

dud i know that. you gotta tighten or loosen the belts and stuff

and how does it uneven… can you send a pic?

Put some grease on rods ?

Very poor surface artifacts when the bed goes lower … so instead of wobble being an issue is seems either as the bed is loaded (more filament on the bed) or some odd z-screw/z-nut tension that causes issues, so I’m concerned and a bit confused.

Normally this issue happens at the tops of wobbly screws, not near the bearing that constrains the screw. But this case does point to some X-Y alignment issue with the z-nuts. Something grease won’t help. Can’t tell though if the nuts are suppossed to have X-Y play : the springs on the screws - do they provide backlash control or allow freedom of movement?

Try to turn off the heating bed during the print. On mine E5M this is the issue. But Creality Support (supposed to exist) don’t give any answer.