ultimaker² print qualtiy problems

[sean-stein 1]

Hello,

though I'm able to produce usable prints, I can't seem to get the print-quality on my ultimaker² right.

Apart from the default settings, I've played with a lot of settings and followed different calibration-guides, but to no avail.

From what I've observed, it seems the string of molten filament that comes out of the nozzle is too thick compared to what comes out of other 0.4 hot-ends I've seen. Reducing the infill doesn't work though, the amount seems right.

As a result, it tends to 'smudge' on edges, making a mess of details. And the infill doesn't come out as lines with a more or less constant diameter, but as thin strings and a lump on the intersection.

I'm sure this machine is capable of more- what's going wrong? I'd upload some pictures, is that possible on this forum, or do i need a external file hoster?

 

[jonask 0]

Hi! There is a gallery feature! You can find it by opening the drop down menu on the upper right where your nickname is. After uploading you can embed pictures from gallerys in your posts.

 

[takei-naodar 0]

Do you use an Infill over 24%? That could explain your issues with the infill.

 

[sean-stein 1]

Thank You for your answers, sorry for not being very responsive the last days.

By infill, do you mean 'fill density' or 'infill overlap'?

I usually use a fill density around 30%, as there seems to be a problem bridging bigger gaps when closing the top, as discribed above.

Went down a bit with 'infill overlap', currently at 12%, maybe thats the way to go.

uploaded some pics illustrating the problems discribed above:

Problems with surfaces:

 

 

Infill thicker on intersections, stringy in between: