Weired Support Generation

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Weisskeinen
Posts: 6
Joined: Wed Sep 30, 2020 2:55 pm

Weired Support Generation

Postby Weisskeinen » Thu Oct 08, 2020 9:23 am

Hello everybody,

maybe this topic was discussed before, but I couldn't find it.
I have a model, that needs some support structrures, which aren't generated correctly. This means that several parts would be printed in the air. I'm using ideaMaker version 3.6.1.
What I found out is that it seems to (also) depend on the thickness of the first layer. This one is sliced with 0.15 mm layer thickness and 0.2 mm first layer:
IdeaMaker_SupportFail3_LayerThickness0.15mm_FirstLayer0.2mm.png


and here the first layer thickness is reduced to 0.15 mm, all the rest was kept the same:
IdeaMaker_SupportFail3_LayerThickness0.15mm_FirstLayer0.15mm.png

So it seems that some parts don't need support anymore, if the first layer was printed thinner (and the slicing layer move down a bit).

And something like this might also be problematic:
IdeaMaker_SupportFail3_LayerThickness0.15mm_FirstLayer0.15mm_secondProblem.png


And it doesn't change, if i change to pillar support.
Do you have any ideas?

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Vicky@Raise3D
Posts: 7637
Joined: Fri Mar 25, 2016 3:54 am

Re: Weired Support Generation

Postby Vicky@Raise3D » Fri Oct 09, 2020 2:10 am

Would you like to share your .idea, .gcode and .data files with us?

Weisskeinen
Posts: 6
Joined: Wed Sep 30, 2020 2:55 pm

Re: Weired Support Generation

Postby Weisskeinen » Fri Oct 23, 2020 12:38 pm

I compressed the .gcode and .data as 7-Zip archive, because Zip became too large. The other files (.idea, .stl, and my slicing settings) are in the .zip file.
Also I used a slightly different part, which shows the problem more obvious.
I also found out that the automatically generated support structures vary with the height of the first layer. And not just slightly, but at certain layer heights, overhangs are detected and supported, at other heights, overhangs are missed. Weired...
Attachments
Schwertklinge1_Gcode.7z
(4.6 MiB) Downloaded 17 times
Schwertklinge1.zip
(744.51 KiB) Downloaded 18 times

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Vicky@Raise3D
Posts: 7637
Joined: Fri Mar 25, 2016 3:54 am

Re: Weired Support Generation

Postby Vicky@Raise3D » Mon Oct 26, 2020 11:50 pm

Thanks for the files. We have found an issue of generating support for smal floated area.
For current version, you can only use Manual Support to add support manully.
We also suggest to increase the value for support expansion under small floated features to support the higher features better.
You can also modify Support Infill Type to be Rectilinear to increase the strength of supports.

Weisskeinen
Posts: 6
Joined: Wed Sep 30, 2020 2:55 pm

Re: Weired Support Generation

Postby Weisskeinen » Tue Oct 27, 2020 12:06 pm

Will you try to fix the issue in an upcoming version of ideaMaker?

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Vicky@Raise3D
Posts: 7637
Joined: Fri Mar 25, 2016 3:54 am

Re: Weired Support Generation

Postby Vicky@Raise3D » Wed Oct 28, 2020 12:01 am

Yes, we will release the fix in next version.


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