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Ren
 Ren
(@ren)
Eminent Member
Unexpected infill presence

Hi, this may be a bit difficult to explain but I'll do my best. On the attached screen is a view of first few layers of my sliced model (it's a tire). Now, there are parts of the inner circumference which have a (violet) solid infill creeped on, looks almost like a moss cover or something. I marked those with (1). The tire has some bumps on the surface and those do NOT have that infill attached from inside, marked (2). What is a purpose of this inner 'cover'? My printed model has very bad thermal damage in those spots covered from inside, and while I am not fully convinced that this infill is a reason for that damage, I'm still curious why the slicer put it there. Does anyone know?

Publié : 30/01/2023 10:39 pm
Diem
 Diem
(@diem)
Illustrious Member

Please save your project as a .3mf file

Files > Save Project as

Zip the .3mf and post it here. It will contain both your part and your settings for us to diagnose.

Cheerio,

Publié : 30/01/2023 10:48 pm
Ren
 Ren
(@ren)
Eminent Member
Topic starter answered:
RE:

Hi Diem, there are quite strict license rules which won't let me do that. But I realized it has something to do with an overhang angle. Slicing a simple sphere gives me the same thing:

 

Up to some particular angle a structure has sort of supporting infill from inside.

Publié : 30/01/2023 10:55 pm
R&D
 R&D
(@rd)
Estimable Member
RE: Unexpected infill presence

This guy answers your question towards the bottom of the post. I think your on to it.

 

https://forum.prusa3d.com/forum/original-prusa-i3-mk3s-mk3-how-do-i-print-this-printing-help/how-to-improve-angled-overhang-prints-near-the-bed/

Publié : 31/01/2023 12:09 am
Ren
 Ren
(@ren)
Eminent Member
Topic starter answered:
RE: Unexpected infill presence

That's a great post, thank you.

Publié : 31/01/2023 12:46 am
fuchsr
(@fuchsr)
Famed Member
RE: Unexpected infill presence

I don't think I ever saw that linked post. A master class. Ah, Swiss, we miss him…

Publié : 31/01/2023 12:56 am
Ren
 Ren
(@ren)
Eminent Member
Topic starter answered:
RE: Unexpected infill presence

Did he, like, leave or what? I see his account doesn’t exist anymore but I saw his name repeatedly in the past.

Publié : 31/01/2023 1:06 am
R&D
 R&D
(@rd)
Estimable Member
RE: Unexpected infill presence

He was Banned from what I understand, my understanding is to much information given that prusa didn't want people to have.

Publié : 29/04/2023 11:53 pm
Ren
 Ren
(@ren)
Eminent Member
Topic starter answered:
RE: Unexpected infill presence

Seriously? Conspiration theories even here? Shame on you. "Estimable member" my a$$... 🙄 

Publié : 30/04/2023 12:17 am
R&D
 R&D
(@rd)
Estimable Member
RE: Unexpected infill presence

I guess I don't know what I'm talking about. Shame on me, and good luck to you.

Publié : 30/04/2023 1:08 am
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