Infill sometimes goes through walls

[MarcusAdams]

Application version 4.4.0

Platform Windows

Printer Prusa MK2

Reproduction steps Load "Filtr 154 v6-oprava.stl" file. Slice with 15% grid or gyroid.

Actual results Infill appears within outer bounds of model but outside of model walls (within cylindrical holes in model).

Expected results Infill should not appear outside of model walls.

Additional information

Filtr 154 v6-oprava.stl.zip curaproject.3mf.zip

Found by Tomáš Mráz.

[smartavionics]

Hi, I think I have already submitted a fix for this (https://github.com/Ultimaker/CuraEngine/pull/1156), looks like the same issue.

[MarcusAdams]

Hi, I think I have already submitted a fix for this (Ultimaker/CuraEngine#1156), looks like the same issue.

@smartavionics , it doesn't look like the same issue to me, but I suppose you could try your fix on the attached STL and see.

[smartavionics]

OK, here's the result...

[smartavionics]

BTW, the above mentioned fix is already in my cura builds which can be found at https://www.dropbox.com/sh/s43vqzmi4d2bqe2/AAADdYdSu9iwcKa0Knqgurm4a?dl=0. They can be installed alongside the UM releases. Please read the README.md file there if you want more info.

[Sharplayers]

BTW, the above mentioned fix is already in my cura builds which can be found at https://www.dropbox.com/sh/s43vqzmi4d2bqe2/AAADdYdSu9iwcKa0Knqgurm4a?dl=0. They can be installed alongside the UM releases. Please read the README.md file there if you want more info.

thx, your buid solved my problem

[archer183]

Still an issue in version 4.5 (unclear if it should have been fixed in this version or not)

[nallath]

The fix that was mentioned is already merged. I'm not 100% sure in what version though, but the latest should have it.

[Ghostkeeper]

The relevant commit should be in since 4.5. So if it's still an issue in 4.5 that commit didn't fix the problem. Do you have any reproduction steps?

[archer183]

It is still an issue. I will upload a saved file showing it tonight.

On Mon, Oct 12, 2020, 5:53 AM Ghostkeeper notifications@github.com wrote:

The relevant commit https://github.com/Ultimaker/CuraEngine/pull/1156/commits/377ee8f379a986fb81f5226ce9181b175a0492c3 should be in since 4.5. So if it's still an issue in 4.5 that commit didn't fix the problem. Do you have any reproduction steps?

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[archer183]

[ infill_crossing_walls_layer138.zip

See attached at layer 138.

[Ghostkeeper]

Interesting model! Indeed, this bug or something like it reproduces with that model even in current Master. There are two layers where the infill protrudes through the walls:

The bug seems to only occur with Gradual Infill enabled, so perhaps something weird is still happening there that is not happening with the normal infill area (or something weird is not happening with gradual that is happening with the normal area).

[archer183]

I can get around it usually by tweaking line width up or down by .001mm on a per model basis, but what works for one design doesn't necessarily work for others.

On Tue, Oct 13, 2020, 4:59 AM Ghostkeeper notifications@github.com wrote:

Reopened #6728 https://github.com/Ultimaker/Cura/issues/6728.

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[printingotb]

I get this in 4.8 beta when I enable "infill support" infill support.zip

[printingotb]

Upon closer inspection, the issue disappears in some areas in my project with a max res value below 0.3mm. Some areas still have the issue. Max dev was at 0.05

[konskarm]

This is now in our backlog. Devs see internal ticket CURA-7845.