Well that was the problem, thanks for everyone’s input.

So I sliced and printed a different model, and then rotated 1 by 180°, it is somewhat weird as the lowest part on the right model seems ok but as the wall built up on the inside it was getting the artifacts. The model on the left was getting the artifacts on the outer piece but not the inner.

In rotating the models after, the artifacts are on the opposite side.

I noticed it was starting at the seam, I have the scarf joint on contour, and noticed that “scarf around entire wall” was checked so trying reprinting to see if that is the issue.

Good point, I have mainly been printing these items for the hydroponic tower. I do have other versions that I can check. I think after this set prints I will add some basic shapes in different orientations to see if there is issues still.

That being said I did print some other items that were stacked and each one is much thinner but there are no artifacts on the outer walls.

I re-lubed the rods before starting another set and still having the issue. I was thinking it had something to do with the Bowden tube but even at the back where the tube doesn’t move much the issue still happens.

Is there a specific lube that is better than others?

Thanks for your reply, to your point yes they still fit, been having this issues for a bit now as I’m up to about 40 of these netcups and the associated other pieces for the grow towers.

I think the belts are good, but will double check.

Easy there pussies can be useful, unlike that shitheel.

I can’t speak to multi colour perse, however the creality K2 went on sale today for certain countries and they have a 50% off sale for a limited number of units, they sold out today’s stock but will have it again tomorrow then they will drop to 40% then 30%. Might be good if your willing to be a beta tester essentially.

The Prusa units seems to waste less filament.