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Distance from Raft as Air Gap like in cura #2823

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MThoilir opened this issue Aug 26, 2019 · 2 comments
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Distance from Raft as Air Gap like in cura #2823

MThoilir opened this issue Aug 26, 2019 · 2 comments
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@MThoilir
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MThoilir commented Aug 26, 2019

Version

PrusaSlicer 2.0.0

3D printer brand / version + firmware version (if known)

CR-10
soon I3 MK3S

Behavior

When i want to use a raft to give my option very good adhesion. But i want a good bottom surface of my print. I dont get these with PrusaSlicer, the printed lines on the first layer dont even stick to each other and dont stick to the next layer which is fine. But with cura it works all fine and i have a compact, a bit structured, bottom layer.
The difference ist that cura uses called "Air Gap" instead of distance.
You set the Air Gap to 0.3 mm. So it prints the first layer of the object in a height of +0.3 mm, so u can detach this layer from the raft after the print. For the next layer position it substract this 0.3 mm and prints it.
That means for the first layer of the object its 0.3 mm heigher. But all following layers have the same height like printed directly on the raft without gap.
In addition, u synchronize the layers of support and object. Because the support is printed directly on the raft.
Please add the option Air Gap directly to the raft layer count in PrusaSlicer.

I know, that i am not a printing profi and my xyz cube test maybe has some other issues. And the cubes where not intentionally made to show this here. But i hope, it works for you.
White PLA is sliced in PrusaSlicer. Green PLA and orange TPU is sliced in cura.

I think this post is new, because i couldnt find it in the search bar. But i am new to github too. So please forgive me if this is already mentioned or maybe only i have this problem with my CR-10 and its not a problem for a Prusa printer. But i want to buy a Prusa with MMU2 and only use one slicer then.

PLA Cura Air Gap
PLA Prusa Air Gap
PLA Prusa Air Gap_ripped
TPU Cura Air Gap

@MThoilir
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MThoilir commented Sep 4, 2019

can someone show me a plane surface coming from a raft on a Prusa Printer and sliced by PrusaSlicer? Thanks

@bubnikv
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bubnikv commented Feb 24, 2021

Implemented with #6003 and aee136c

Object over raft is no more printed with bridging flow, but with a normal flow.
Gap between the raft and 1st object layer is configurable independently from the support gap.

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