Ghostkeeper
Ghostkeeper
Could it be that there were gaps in between the walls in 4.9 that allowed the material to flow in?
Looking at the layer view of that slice  I think we might just be looking at the effect of the seam not being placed in the sharpest inner/outer corner....
> At this time I don't see anything actionable except fixing the seam positioning deficiencies and re-testing with higher flow again after that's fixed, to see if it makes the...
We have since implemented a feature for Arachne that prints the centremost wall last, so that the material can expand towards the centre: https://github.com/Ultimaker/CuraEngine/pull/1457 Perhaps that helps to reduce this...
> it seems to be doing some strange travel moves outside the model rather than keeping the nozzle inside. I'll try to get a better report on what's going on...
The tracking link we have is this: https://github.com/Ultimaker/Cura/discussions/9388#discussioncomment-593924
This is a project file that reproduces the problem, for easier testing. [CFFFP_onewall_cylinder_72.zip](https://github.com/Ultimaker/CuraEngine/files/6501266/CFFFP_onewall_cylinder_72.zip)
Actually, I'm starting to think this is expected behaviour now. We have an exception in the simplification algorithm that prevents moving line segments longer than the Maximum Resolution even if...
Developers, see issue CURA-8159.
Our project manager removed this from our planning because it was not deemed important enough.