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Struggle with infills  

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Vojta
(@vojta-4)
Active Member
Struggle with infills

I have tried stl.,obj. and 3mf. Some do not work at all but the better attempts end up the same way. It fills the cut out and the top making it a solid disc. I think the only viable option would be a 0% fill even though it will look different and probably be alot weaker. I appreciate all advise.

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Best Answer by Neophyl:

Ringarn is quite correct.  Your 3mf is made up of 2 parts.  Both placed on top of each other.  One of them has 120 open edges and in effect is missing the 'inside' of your bowl shape.  As such when sliced that is always filled in.  If you split them out in the slicer you can quite clearly see the open edges (the purple lines) and the dark green of the interior normals of the second object. Dark green areas on models are not a good sign.  Even without the yellow warning triangle next to the model in the right hand tree list (which should always be the first indication of a model issue).

I don't use Fusion 360 but you need to fix your workflow to stop these sorts of things otherwise you will get more of these types of issues.  If you can figure out what step caused this problem you can avoid it going forward.

 

Just a note for future reference, while the 3mf you attached allowed us to see the issue with it in this case, if your problem had been down to settings in the slicer instead of the model itself then it wouldn't have been enough.  3mf files can contain different information depending on what is used to create them.  A 3mf file saved from Prusa Slicer (using file Save Project As) rather than from your modelling software will contain not only the model files but also a copy of ALL your slicer settings, including modifiers etc.  Its the single easiest way to debug issues which is why we ask for them. 

Posted : 10/05/2024 6:24 pm
BaconFase
(@baconfase)
Reputable Member
RE: Struggle with infills

Usually means there's something wrong with your model when the sliced version is that kind of wonky.

 

XL-5T, MK3S MMU3 || GUIDE: How to print with multiple-nozzlesizes do read updated replies || PrusaSlicer Fork with multi-nozzlesize freedom || How Feasible is Printing PETG for PLA supports on XL very

Posted : 11/05/2024 2:29 am
Neophyl
(@neophyl)
Illustrious Member
RE:

Or they have the slice option for fill holes selected. 

Posted : 11/05/2024 7:08 am
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

Do you have any guess what could be wrong? If it helps i model in fusion 360.

Posted : 11/05/2024 6:53 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

I turned it off but nothing changed

Posted : 11/05/2024 6:53 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Struggle with infills

if you Zip Compress your STL, or OBJ or .3mf Prusa slicer file then attach your Zip file. we can have a look at it for ouu  
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

Posted : 11/05/2024 6:59 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

Didnt even think of that great idea, I just hope it works

podložka v2

Posted : 11/05/2024 9:15 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Struggle with infills

This has nothing to do with your infill settings. Without seeing the 3mf project file it's all speculation though 

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 11/05/2024 10:29 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

I tried putting it .stl and its way worse

Posted : 12/05/2024 9:25 am
Ringarn67
(@ringarn67)
Reputable Member
RE: Struggle with infills

There are 2 parts, just drag the one with a triangle in front out of the way and click "the eye" right next to it, or delete it

 

Prusa i3 MK3S+ FW 3.11.0 (kit dec -20), PrusaSlicer 2.6.1+win64, Fusion 360, Windows 10

Posted : 12/05/2024 3:54 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Struggle with infills

Ringarn is quite correct.  Your 3mf is made up of 2 parts.  Both placed on top of each other.  One of them has 120 open edges and in effect is missing the 'inside' of your bowl shape.  As such when sliced that is always filled in.  If you split them out in the slicer you can quite clearly see the open edges (the purple lines) and the dark green of the interior normals of the second object. Dark green areas on models are not a good sign.  Even without the yellow warning triangle next to the model in the right hand tree list (which should always be the first indication of a model issue).

I don't use Fusion 360 but you need to fix your workflow to stop these sorts of things otherwise you will get more of these types of issues.  If you can figure out what step caused this problem you can avoid it going forward.

 

Just a note for future reference, while the 3mf you attached allowed us to see the issue with it in this case, if your problem had been down to settings in the slicer instead of the model itself then it wouldn't have been enough.  3mf files can contain different information depending on what is used to create them.  A 3mf file saved from Prusa Slicer (using file Save Project As) rather than from your modelling software will contain not only the model files but also a copy of ALL your slicer settings, including modifiers etc.  Its the single easiest way to debug issues which is why we ask for them. 

Posted : 12/05/2024 4:20 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

Thank you so much, dont know how i overlooked it

Posted : 12/05/2024 4:32 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE:

Feel free to post here or DM me your Fusion f3d file. I'd be happy to have a look to see what caused the issue.

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 12/05/2024 4:55 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

I think this should work. If it doesnt let me know. 

https://a360.co/3JVTVkL

Posted : 12/05/2024 5:29 pm
Ringarn67
(@ringarn67)
Reputable Member
RE: Struggle with infills

 

Posted by: @vojta-4

I think this should work. If it doesnt let me know. 

When you choose "Share Link" you need to select "Allow item to be downloaded", as for now we can look at it in browser...

Prusa i3 MK3S+ FW 3.11.0 (kit dec -20), PrusaSlicer 2.6.1+win64, Fusion 360, Windows 10

Posted : 12/05/2024 9:28 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

I dont have the paid version so i cant do that. Im not sure if it is possible to bypass it.

 

Posted : 13/05/2024 3:56 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Struggle with infills

Export the model as a f3d file, zip compress it and use the Attach file button below the edit window here to upload it. You have to compress it or the forum software won't accept it.  

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 13/05/2024 4:02 pm
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

This should be finally it

Posted : 13/05/2024 4:09 pm
FoxRun3D
(@foxrun3d)
Famed Member
RE: Struggle with infills

In Fusion,  hide the surface Body1 before you save the base component as mesh. Or remove the surface body before exporting. Or just right click on Body2 and save as mesh. As diagnosed before, Body 1 is what's causing the errors in the STL. I for one would probably have modeled one of the indents onto the base geometry and then used a circular pattern instead of going through the surface workspace. But there are many ways to skin a cat in Fusion.

Formerly known on this forum as @fuchsr -- until all hell broke loose with the forum software...

Posted : 13/05/2024 4:55 pm
Ringarn67 liked
Vojta
(@vojta-4)
Active Member
Topic starter answered:
RE: Struggle with infills

Alright, thank you alot for the tip

Posted : 14/05/2024 11:14 am
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