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Moe
 Moe
(@moe)
Active Member
Void in Thin Walls

Dear all, I have been wrestling with this in the last few days and I feel there should be a simpler way around it. I built this piece in rhino with network surface, it has some thin walls obviously as you can see and it's solid and clean in rhino. But then in the slicer, in the thinner sections, it generates voids in the wall surface. Anyone knows an adjustment in the slicer to resolve this? Like a tolerance adjustment or so? I have used MakerBot before and I am new to the prusa slicer and do not know the setting very well.

Best Answer by JoanTabb:

It is probable that you have modelled the wall thickness too thin at those points.

You could re scale the model larger, or

reduce the 'Exterior Perimeter' 'Extrusion Width' a little, or

you could use a smaller nozzle

or you could try  adding a positive value to the XY size compensation, it's an 'Expert' setting,, in the 'Advanced' tab of the 'Print Settings' Menu

Personally  I would try the XY Size Compensation first... 

regards Joan

Posted : 28/03/2020 9:53 pm
JoanTabb
(@joantabb)
Veteran Member Moderator
RE: Void in Thin Walls

It is probable that you have modelled the wall thickness too thin at those points.

You could re scale the model larger, or

reduce the 'Exterior Perimeter' 'Extrusion Width' a little, or

you could use a smaller nozzle

or you could try  adding a positive value to the XY size compensation, it's an 'Expert' setting,, in the 'Advanced' tab of the 'Print Settings' Menu

Personally  I would try the XY Size Compensation first... 

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 : 28/03/2020 10:35 pm
Moe liked
karl-herbert
(@karl-herbert)
Illustrious Member
RE: Void in Thin Walls
Posted by: @moe

Dear all, I have been wrestling with this in the last few days and I feel there should be a simpler way around it. I built this piece in rhino with network surface, it has some thin walls obviously as you can see and it's solid and clean in rhino. But then in the slicer, in the thinner sections, it generates voids in the wall surface. Anyone knows an adjustment in the slicer to resolve this? Like a tolerance adjustment or so? I have used MakerBot before and I am new to the prusa slicer and do not know the setting very well.

 

Maybe this could help:

Activate "Detect thin walls".

Statt zu klagen, dass wir nicht alles haben, was wir wollen, sollten wir lieber dankbar sein, dass wir nicht alles bekommen, was wir verdienen.

Posted : 28/03/2020 10:44 pm
Moe liked
bobstro
(@bobstro)
Illustrious Member
RE: Void in Thin Walls

You might try enabling Print Settings->Layers and perimeters->Quality->Detect thin walls and/or Ensure vertical shell thickness.

My notes and disclaimers on 3D printing

and miscellaneous other tech projects
He is intelligent, but not experienced. His pattern indicates two dimensional thinking. -- Spock in Star Trek: The Wrath of Khan

Posted : 28/03/2020 10:45 pm
Moe liked
Moe
 Moe
(@moe)
Active Member
Topic starter answered:
RE: Void in Thin Walls

Thank you all!

Joan, XY Size Compensation is exactly what I was looking for, adding only 0.1mm fixed it.

Many thanks,

Posted : 29/03/2020 7:22 pm
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