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Unnecessary raft on models with large perimeter but nothing inside. #430

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JakeAllison opened this issue Jul 19, 2017 · 4 comments
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@JakeAllison
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Version 1.36.0-prusa3d-linux64

Ubuntu Studio 16.04.2 LTS
4.8.0-58-lowlatency

This is a feature request.

The issues is that when I make a raft on an object with a large perimeter but nothing in the middle, the raft will cover all the area within and waste large amounts of filament and time.

The screen shot attached shows all the excess raft that is going to waste. It would be nice to have the raft only cover the areas that are necessary.

screenshot_2017-07-18_23-09-01

@bubnikv
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bubnikv commented Jul 19, 2017 via email

@JakeAllison
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Here's the files.

The configs used are:
Print Settings: Raft
Filament Settings: Colorfabb PLA
Printer Settings: Creator Pro Right Only

Phantom_3_Prop_Guards.zip
Slic3r_Pr_config_bundle.ini.zip

bubnikv added a commit that referenced this issue Feb 24, 2021
…side. #430

Don't fill in the holes in 1st layer of the raft.
The user may apply a higher raft_expansion if one wants a better 1st layer adhesion.
@bubnikv
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bubnikv commented Feb 24, 2021

image

Fixed with e9875f5

Don't fill in the holes in 1st layer of the raft.
The user may apply a higher raft_expansion if one wants a better 1st layer adhesion.

@ymralin
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ymralin commented Nov 21, 2022

Is it possible to bring back this feature as an option? I know there is Raft expansion value, but it expands in all directions. A continous raft under whole model would be helpfull. Another helpfull thing here would be to force the raft to be printed contionusly, which now is no the case when the model base is an unregular concave polygon.

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