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prusa3d / PrusaSlicer

G-code generator for 3D printers (RepRap, Makerbot, Ultimaker etc.)
https://www.prusa3d.com/prusaslicer/
GNU Affero General Public License v3.0
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Bridge infill settings #7728

Open scotfor opened 2 years ago

scotfor commented 2 years ago

Version: 2.4.0-alpha3+win64 Build: PrusaSlicer-2.4.0-alpha3+win64-202109301506 Operating System: Windows System Architecture: 64 bit Windows Version: Windows 10 (build

Printers are Kingroon KP3 and Geeetech A10M.

A known problem discussed in on-line forums.

There are no settings for "bridge infill". There needs to be since it often does not print well with the preset, hidden settings. ** If nothing else it would be good to be able to just turn it off so "solid infill" could be used.

The problem I see most often is a lack of bridging - gaps in the layer over a grid infill ( 20% for example ) A couple of possible problems - 1) Speed too high, 2) Low extrusion.

The slicer image won't help since all looks fine there.

lukasmatena commented 2 years ago

To be honest, I am not sure I understand what you are talking about. A 3MF, a screenshot, or at least a link to where this is "discussed in on-line forums" might help.

As far as I know, solid layer above 20 % Grid infill is printed as bridging. This may also be a duplicate of #569, but you really should expand on it a bit.

scotfor commented 2 years ago

To be honest, I am not sure I understand what you are talking about. A 3MF, a screenshot, or at least a link to where this is "discussed in on-line forums" might help.

As far as I know, solid layer above 20 % Grid infill is printed as bridging. This may also be a duplicate of #569, but you really should expand on it a bit.

ok. Links: https://forum.prusaprinters.org/forum/prusaslicer/bridging-infill-settings/ https://forum.prusaprinters.org/forum/prusaslicer/turn-off-bridge-infill/ https://www.reddit.com/r/prusa3d/comments/ko1ex5/bridge_infill_picks_the_worst_orientation/ https://www.reddit.com/r/3Dprinting/comments/jg37xl/comparing_cura_to_prusaslicer_bridge_infill_issue/ https://github.com/prusa3d/PrusaSlicer/issues/3225 https://3dprinting.stackexchange.com/questions/18163/bridge-infill-does-not-stick-to-the-perimeter

Slicer: Here is a screenshot of the layer window. prusa bridge infill

The most important point of this issue is that the "Feature type" 'Bridge infill' appears and there are no settings for that feature type. None. This is just wrong from a usability, 3d print configuration, and tool design perspective.

The default hard coded values don't work. Here is a pic of the Bridge infill layer I just printed. bridge infill

lukasmatena commented 2 years ago

@scotfor Thanks. Can you please send the 3MF of that print?

scotfor commented 2 years ago

@scotfor Thanks. Can you please send the 3MF of that print? @lukasmatena Gladly, but the platform doesn't let me attach 3mf files to this post. How do I post/send it to you?

lukasmatena commented 2 years ago

@scotfor Rename it to zip, for example.

scotfor commented 2 years ago

@lukasmatena test peice v4.zip

FloBirni commented 2 years ago

Instead of opening a new ticket, it might be more helpful contributing to this one. I'm currently facing the issue, that the bride support with it's big spacing between lines is visbile from a cutout on the bottom of a printed part. I would really like to get rid of this bridge support layer or change the spacing between the bridge lines so that it becomes a solid infill, because it looks like a settings or print failure at the moment. I was searching for quite some time now and it appears, as also stated by the links the author of this issue provided, that there is no possibilty right now to turn the bridge layer off are change it's behavior, although it would be desired by a lot people. So please, it would be really appreciated if you could offer more control over the bridge infill appearance.