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[Request] Add optional perimeter to raft #756

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SamuelSVD opened this issue Mar 5, 2018 · 4 comments
Closed

[Request] Add optional perimeter to raft #756

SamuelSVD opened this issue Mar 5, 2018 · 4 comments
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@SamuelSVD
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SamuelSVD commented Mar 5, 2018 •
edited

Version

1.38.6-prusa3d-win64

Operating system type + version

Win 10 Pro

Behavior

  • Describe the problem:
    When using a raft, even when configured correctly, the quick back and forth motion of the Prusa i3 Mk2 when it reaches the limits causes the raft to lift.

  • Current problem:
    Here is where the raft lifts:
    problem

  • Expected Result of Request:
    A perimeter around the raft should stop the lifting of the raft when it reaches the ends as the printed material should adhere to the perimeter:
    expected
    This could be implemented as an optional parameter (a checkbox) that only works when raft layers is greater than 1.

Is this a new feature request?
Yes

STL/Config (.ZIP) where problem occurs

Request.zip
@bubnikv
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Discussed with Jindrich, our print expert and Slic3r profile tweaker, he thinks we should make it a default feature without any additional checkbox.

Should we print the perimeter before or after the usual 1st layer support?

@SamuelSVD
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I think we should print the perimeter before the usual 1st layer support. This way the first layer will be able to adhere to the perimeter, reducing the probability for error.

@bubnikv
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I think we should print the perimeter before the usual 1st layer support. This way the first layer will be able to adhere to the perimeter, reducing the probability for error.

Jindrich has the same opinion.

bubnikv added a commit that referenced this issue Feb 24, 2021
@bubnikv
Added a single perimeter to the first layer of support or raft.
fcb714c 
Fixes [Request] Add optional perimeter to raft #756
Fixes First support layer does not stick to bed #2101

New parameters raft_first_layer_density and raft_first_layer_expansion
to influence the 1st layer of raft or support.
Fixes Allow to disable raft under support structures. #3772
Fixes raft is larger than necessary #2568
Fixes Supports on the build plate should have a solid bottom interface for better adhesion #1165

Changed the 1st layer infill to rectilinear even for soluble materials.
Fixes first layer of support for multi filament support oddly spaced #1445
Fixes Full Soluble Materials interfacing into Models + Soluble material noise on Bed #684
@bubnikv
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Implemented with fcb714c

The 1st layer support or raft will always have a perimeter drawn around it.

Also there will be new parameters raft_first_layer_density and raft_first_layer_expansion
to influence the 1st layer of raft or support.

@bubnikv bubnikv mentioned this issue Feb 24, 2021
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martinbudden pushed a commit to martinbudden/PrusaSlicer that referenced this issue Jun 3, 2021
@supermerill
prusa3d#756 0 in temperature and first_layer_temperature now correctl…
2089722 
…y disable the setting.
@bubnikv bubnikv mentioned this issue Aug 6, 2021
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@bubnikv @SamuelSVD @rtyr