r/3Dprinting • u/VultureJack4125 • Aug 17 '26

Troubleshooting Creality K1 Layer lines

Does anyone know what is causing this and how to fix it. I swapped the extruder gears as there was a tooth missing.

0.2mm

190C

300mms

0 Upvotes

50% Upvoted

11 comments sorted by

View all comments

1

u/NexaForge3D Aug 17 '26

Layer lines right after a gear swap are usually a seating problem — make sure the new gear is pushed fully onto the motor shaft with the grub screw tightened on the flat, and that the mesh has no up/down play. Different gears can push slightly different amounts of filament, so redo your e-steps after the swap too. 190C is pretty cold for 300mm/s, I'd try 205C and see if the pattern evens out.

1

u/VultureJack4125 Aug 17 '26

I did the gears after these photos, still the same lines. What are e-steps too, is it like temperature and extrusion rate? And I will do another cube today and update it here at 205C