underextrusion after retraction
Hello, I have a problem that is driving me nuts, all my prints are coming out with this weird underextrusion after a retraction is made after a long movement. I tried changing a lot of settings and neither work, reducing speed doen't work it just alleviate the sypmtoms, using the "retraction extra prime amount" setting only makes things worst because it doesn't help with the underextrusion only overextrudes the support and small parts making the supports to fuse with the part and making small parts full of blobs, I also try adjusting the tension of the springs in the extruder idler and also it didn't work, I tried other things but right now i don't remember.
I'm using the Prusa mk2s with single extruder and Cura, the material is esun pla+ but it also happens with the Prusa pla so it's not the material, I'm printing at 210° at 80mm/s the retraction is 0.8mm and retraction speed 35mm/s.
I will really appreciate if someone can help me because I tried a lot of things and look everywhere but couldn't find a solution but if you are going to help me please if you start to talk about gcode and stuff like that explain it step by step because I don't understand about that kind of things.
Re: underextrusion after retraction
What I think is the most weird, is that even when I disable the retraction the underextrusion still happens.
Re: underextrusion after retraction
do you think this is a linear advance artefact?
maybe try a lower K value, if you are using linear advance
regards Joan
I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK
Re: underextrusion after retraction
Hi,
Check that : https://github.com/Ultimaker/Cura/issues/2672
I think you can fix this by turning on the experimental wall order optimization and it may pay you to specify the z-seam position also.
Re: underextrusion after retraction
do you think this is a linear advance artefact?
maybe try a lower K value, if you are using linear advance
regards Joan
I'm not using linear advance, but maybe using it will work.
Re: underextrusion after retraction
Hi,
Check that : https://github.com/Ultimaker/Cura/issues/2672
I think you can fix this by turning on the experimental wall order optimization and it may pay you to specify the z-seam position also.
I alredy try that but is the same thing if the wall order optimization is on or off.
Re: underextrusion after retraction
Hi,
Can you share the STL file/gcode ?
Have you tried with another slicer?
I think the issue, is exactly the same that my github post.
Cura doesn't retract filament above infill and let filament flow so underextrusion can appear.
It can be reduce with "wall order optimization" but in your case it seems to not be enought because your piece seems too here long.
You should defenitly try another slicer for print this piece.