Removal of solid infill on a part with zero infill
 
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woodhamsmax
(@woodhamsmax)
Member
Removal of solid infill on a part with zero infill

Hi All

I am trying to print a RC wing with zero infill, 3 top layers and 4 bottom layers. 

Every time I slice, I get a lot of unwanted solid infill. See image:

Can anyone help? Googling leads me to "ensure vertical thickness" which is removed on 2.6.1

 

Best regards

Max

 

 

 

This topic was modified 1 year ago by woodhamsmax
Posted : 27/10/2023 10:40 am
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Removal of solid infill on a part with zero infill

Could you please add a project file, containing this wing section, so that other users can attempt to help you with more than guesses> 

Save the project using the file menu in Prusa Slicer, then Zip compress the file, and attach the zip file to your next post, please. 

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 : 27/10/2023 11:47 am
woodhamsmax
(@woodhamsmax)
Member
Topic starter answered:
RE: Removal of solid infill on a part with zero infill

Hi Joan. Thanks for the prompt reply. Here is the .3mf file as requested. 

wing_test_retract

Regards

 

Max

Posted : 27/10/2023 12:04 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Removal of solid infill on a part with zero infill

Hi Max, 
is this the correct wing section?
I cant see any internal structure!

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 : 27/10/2023 12:54 pm
woodhamsmax
(@woodhamsmax)
Member
Topic starter answered:
RE: Removal of solid infill on a part with zero infill

Hi Joan. There is some internal structure. Some very thin cuts within the model. A section view will show the detail. 

Regards

Max

Posted : 27/10/2023 1:18 pm
Neophyl
(@neophyl)
Illustrious Member
RE: Removal of solid infill on a part with zero infill

The new 'improved' solid infill code yet again makes things more difficult.  Until they change it to let people properly and FULLY turn it off we have to resort to workarounds with modifiers.

Try the attached project.  Examine the height range modifier.

Go add your support to https://github.com/prusa3d/PrusaSlicer/issues/10102   or https://github.com/prusa3d/PrusaSlicer/issues/10926 or https://github.com/prusa3d/PrusaSlicer/issues/10202   or all of them.  

Posted : 27/10/2023 5:42 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Removal of solid infill on a part with zero infill

Hi Max, 
that's a different approach compared to the last wing section that I looked at,

Is this what you are looking for?


wing_test_retract JT

if you want thicker surfaces, you could increase the extrusion width, for external perimeters, 

regards Joan

this was another wing section and another slicer configuration

in this version, the slit perforated the undersurface

Wing_C revised JT

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 : 27/10/2023 5:46 pm
woodhamsmax
(@woodhamsmax)
Member
Topic starter answered:
RE: Removal of solid infill on a part with zero infill

Thank you one and all. So much info to digest. I will get back to you soon. 

 

Just wanted to say I really appreciate your time and effort. 

Max

Posted : 27/10/2023 7:32 pm
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