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Z-Seam Alignment shifting and not perfectly vertical


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Posted · Z-Seam Alignment shifting and not perfectly vertical

Hello dear 3d print masters!


I've been strugling against a very weird problem with my z-seam on a cylindrical part...


it doesn't matter what i do the seams do not align perfectly layer after layer...  by a unknow reason, the shift right, then shift back, and the shift again, also, each layer has a shift of a small distance, resultin in a diagonal seam. 


It can be seem on the Preview screen according to the image attached.


I turned coasting on so that we could better see it on the display screen, but the problem happens even with coasting off!


As it can be seen below, no setting on the z-seam parameters seems to affect this weird behavior.


Using Cura 4.3, but the same has been hapenning since 4.2.


Retraction is on, retraction between layers is on, coasting is on, wiping is on... but the same happens with all these off..


Any suggestion on how i can perfectly align the z-seam?






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