<p>At the intersection of the top and bottom planes of the cross-piece and the cylinder, there are non-manifold edges. Meshmixer is able to identify this problem but cannot repair it. My slicer, Simplify3D also identifies the faults and prints a solid cylinder between the planes. Prusa Slicer 2 also creates a solid at that location.</p>

<p>As you've indicated that you are the creator, consider to use the <a href="https://daler.github.io/blender-for-3d-printing/printing/3d-print-toolbox.html" rel="nofollow noreferrer">3D printing features</a> within Blender to assist you with repairing the problem locations.</p>

<blockquote>
  <p>File ‣ User Preferences (or <kbd>Ctrl</kbd>-<kbd>Alt</kbd>-<kbd>U</kbd>)
  to open the User Preferences menu.</p>
  
  <p>In the Add-ons tab, start typing 3d print into the search bar. Once
  the “Mesh: 3D Print Toolbox” shows up, click the checkbox on the far
  right to enable this add-on.</p>
  
  <p>Close the User Preferences window.</p>
  
  <p>In the Tool Shelf, there should be a new 3D Printing tab.</p>
</blockquote>

<p><a href="https://i.sstatic.net/h24LJ.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/h24LJ.png" alt="3d printing tab"></a></p>

CC BY-SA 4.0
2020-05-10T11:28:43.717Z
2020-05-15T22:14:33.573Z
2020-05-15T22:14:33.573Z
fred_dot_u
<p>When importing <a href="https://www.file-upload.net/download-14067778/Bmw_Sensor_Halter.stl.html" rel="nofollow noreferrer">this .stl file</a> in Creality Slicer another face appears in the middle when viewed in layered view. This face is not visible in my 3d modeling software Blender. I tried cleaning up the model a bit and to triangulate the faces myself, neither helped and the problem is still there. Also I didn't find anything online.</p>

<p><a href="https://i.sstatic.net/wIWCw.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/wIWCw.png" alt="Normal View"></a></p>

<p><a href="https://i.sstatic.net/kjnfb.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/kjnfb.png" alt="Layered View"></a></p>

<3d-models><stl><blender>
Face where there should be no face
Patrick
# Face where there should be no face

(Asked by: username_0 on 2020-05-10)

When importing [this .stl file](https://www.file-upload.net/download-14067778/Bmw_Sensor_Halter.stl.html) in Creality Slicer another face appears in the middle when viewed in layered view. This face is not visible in my 3d modeling software Blender. I tried cleaning up the model a bit and to triangulate the faces myself, neither helped and the problem is still there. Also I didn't find anything online.

[![Normal View](https://i.sstatic.net/wIWCw.png)](https://i.sstatic.net/wIWCw.png)

[![Layered View](https://i.sstatic.net/kjnfb.png)](https://i.sstatic.net/kjnfb.png)

**Tags:** 3d-models, stl, blender

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## 1 answers

### Answer by username_1 on 2020-05-10. Score: 4

At the intersection of the top and bottom planes of the cross-piece and the cylinder, there are non-manifold edges. Meshmixer is able to identify this problem but cannot repair it. My slicer, Simplify3D also identifies the faults and prints a solid cylinder between the planes. Prusa Slicer 2 also creates a solid at that location.

As you've indicated that you are the creator, consider to use the [3D printing features](https://daler.github.io/blender-for-3d-printing/printing/3d-print-toolbox.html) within Blender to assist you with repairing the problem locations.

> File ‣ User Preferences (or `Ctrl`-`Alt`-`U`)
> to open the User Preferences menu.
>
> In the Add-ons tab, start typing 3d print into the search bar. Once
> the “Mesh: 3D Print Toolbox” shows up, click the checkbox on the far
> right to enable this add-on.
>
> Close the User Preferences window.
>
> In the Tool Shelf, there should be a new 3D Printing tab.

[![3d printing tab](https://i.sstatic.net/h24LJ.png)](https://i.sstatic.net/h24LJ.png)


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