<p>It's not possible to have such fine control over the path generation, as far as I know. (Slicers don't really know what your “exterior wall” is.) In order to get a seamless junction you will need to fit in two extrusion widths, which you could do by either:</p>
<ul>
<li><p>Slightly thicken that part of the model on the inside (if this will not create clearance issues). You can insert boxes in PrusaSlicer which might be able to do it.</p>
</li>
<li><p>Use a smaller nozzle.</p>
</li>
</ul>

CC BY-SA 4.0
2024-05-20T17:41:49.637Z
2024-05-20T17:41:49.637Z
Kevin Reid
<p>I have a model that has an extremely thin place, only one perimeter in width. Slicer moves in the way marked with the red line, creating a join in the very middle of the very visible flat pane. I marked it with a red line on the first picture.</p>
<p>I would prefer if the printer would print the exterior wall first, and leave any joining marks on the interior only, as marked with a green line below. Is there a way to achieve this?</p>
<p>I am using PrusaSlicer and Orca, but I'm ready to try other slicers if they can do it.</p>
<p>Model is <a href="https://github.com/JaredC01/Galileo2/blob/main/galileo2_extruder/stl/cable_cover.stl" rel="nofollow noreferrer">cable-cover.stl</a> from the Galileo2 project. Older version, because I have another issue with the current one.</p>
<p><a href="https://i.sstatic.net/wSObq3Y8.png" rel="nofollow noreferrer" title="What I don't like"><img src="https://i.sstatic.net/wSObq3Y8.png" alt="What I don't like" title="What I don't like" /></a></p>
<p><a href="https://i.sstatic.net/md73stYD.png" rel="nofollow noreferrer" title="What I want"><img src="https://i.sstatic.net/md73stYD.png" alt="What I want" title="What I want" /></a></p>
<p>Note: For Cura, Orca and Prusa, Outer / Inner wall is a different distinction. On the pictures, all orange ones are classified as outer walls, and yellow ones are inner. The inner-outer or outer-inner distinction does not change the effect. That's why I am using &quot;exterior wall&quot; and not &quot;outer wall&quot; in my question.</p>

<slicing><prusaslicer><seam>
Is there a way to tell slicer which part of the model should be a continuous line?
Mołot
# Is there a way to tell slicer which part of the model should be a continuous line?

(Asked by: username_0 on 2024-05-14)

I have a model that has an extremely thin place, only one perimeter in width. Slicer moves in the way marked with the red line, creating a join in the very middle of the very visible flat pane. I marked it with a red line on the first picture.

I would prefer if the printer would print the exterior wall first, and leave any joining marks on the interior only, as marked with a green line below. Is there a way to achieve this?

I am using PrusaSlicer and Orca, but I'm ready to try other slicers if they can do it.

Model is [cable-cover.stl](https://github.com/JaredC01/Galileo2/blob/main/galileo2_extruder/stl/cable_cover.stl) from the Galileo2 project. Older version, because I have another issue with the current one.

[![What I don't like](https://i.sstatic.net/wSObq3Y8.png "What I don't like")](https://i.sstatic.net/wSObq3Y8.png "What I don't like")

[![What I want](https://i.sstatic.net/md73stYD.png "What I want")](https://i.sstatic.net/md73stYD.png "What I want")

Note: For Cura, Orca and Prusa, Outer / Inner wall is a different distinction. On the pictures, all orange ones are classified as outer walls, and yellow ones are inner. The inner-outer or outer-inner distinction does not change the effect. That's why I am using "exterior wall" and not "outer wall" in my question.

**Tags:** slicing, prusaslicer, seam


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## 1 answers

### Answer by username_1 on 2024-05-20. Score: 1

It's not possible to have such fine control over the path generation, as far as I know. (Slicers don't really know what your “exterior wall” is.) In order to get a seamless junction you will need to fit in two extrusion widths, which you could do by either:

* Slightly thicken that part of the model on the inside (if this will not create clearance issues). You can insert boxes in PrusaSlicer which might be able to do it.
* Use a smaller nozzle.


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