How can I make bridge infill tighter?
 
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How can I make bridge infill tighter?  

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Ira S
(@ira-s)
Estimable Member
How can I make bridge infill tighter?

I've noticed that when infill layers are complete the next layer ("bridge infill" I believe it's called) isn't a solid layer but has gaps between extruded lines. Almost like the distance between lines isn't the same as a normal solid layer.  This doesn't compromise the print itself, but sometimes this bridge infill layer is visible.  Is there a setting to make this layer more "solid"? 

As a side note, when I look layer-by-layer in Prusa Slicer using the features legend, the bridge infill spacing on the screen appears to be the same as that of a solid layer.  Perhaps a bridge infill layer doesn't extrude as much filament? 

Thanks. 

Posted : 25/03/2025 11:12 pm
Diem
 Diem
(@diem)
Illustrious Member

It's printing in mid air, there is nothing for it to pack against - the only way to get it tighter is to support it, preferably with different, perhaps soluble, material.

Cheerio,

Posted : 25/03/2025 11:45 pm
Ira S
(@ira-s)
Estimable Member
Topic starter answered:
RE: How can I make bridge infill tighter?
Posted by: @diem

It's printing in mid air, there is nothing for it to pack against - the only way to get it tighter is to support it, preferably with different, perhaps soluble, material.

Cheerio,

So if I understand correctly, this layer is spaced the same as a solid layer but the gaps are caused by the filament not getting "squished" against a lower layer? 

Posted : 26/03/2025 2:14 pm
Diem
 Diem
(@diem)
Illustrious Member

Correct.  You will see similar looseness above simple same-material supports too.

Cheerio,

Posted : 26/03/2025 4:42 pm
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