Slightly Wrong X-Y home position

[JonRaymond]

Dust shields around the stepper motors?

These can cause shifts

Layer shifting after color change

OK, so I found out what it was and where it came from. 3 weeks ago I printed these dust covers for the X-Y motors: https://makerworld.com/en/models/170634#profileId-187309 (they have since been taken down for very good reasons, but I had bookmarked them…) [IMG_0583] [IMG_0584] After reading this post https://www.reddit.com/r/BambuLab/comments/10jvjrj/comment/j5rz43b/ , I realized that the P1S was homing without end-stop switches (even my old Ender 3V2 had some!)… And the covers where basic…

Layer shifting after color change

I can confirm that. I printed the same dust covers and I had the same issue with layers shift. Don’t use dust covers and be happy ))