<p>In your slicer check your z-seam overlap. Lines like that are what happens when a slicer is systematically trying to hide a seam while not adding a ton of time onto the print by adding in a bunch of additional time for travel.</p>

CC BY-SA 4.0
2021-03-19T00:41:06.843Z
This seemed to be the case, I was using matterhacker for slice and print. Didn't have this issue with Cura. Thanks a lot mate!
Anirudh Vasudevan
CC BY-SA 4.0
2021-03-10T17:09:51.653Z
2021-03-10T17:09:51.653Z
Celly
<p>This one is turning out to be a real head-scratcher. I'm running a stock Creality CR-10S and there seems to be a single line approx 45° across the print on the X-axis direction.</p>
<p>I have attached images to better explain. Any help would be greatly appreciated.</p>
<p><a href="https://i.sstatic.net/iI07T.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/iI07T.jpg" alt="enter image description here" /></a>
<a href="https://i.sstatic.net/WwS7x.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/WwS7x.jpg" alt="enter image description here" /></a>
<a href="https://i.sstatic.net/wUoGh.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/wUoGh.jpg" alt="enter image description here" /></a>
<a href="https://i.sstatic.net/CFAyf.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/CFAyf.jpg" alt="enter image description here" /></a>
<a href="https://i.sstatic.net/vtaYD.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/vtaYD.jpg" alt="enter image description here" /></a></p>

CC BY-SA 4.0
2021-03-08T19:19:19.140Z
This are probably wrong theories, so let's exclude them: Does this anyhow correlate with an infill pattern (here I think of "Infill overlap (%)" setting) or with the starting point of print for the outer wall (a Z-seam, you would need to observe during the print)?
octopus8
CC BY-SA 4.0
2021-03-08T19:43:13.207Z
Do you print Infill before walls? Can you print a copy of that item and *abort* that print mid-way, showing the infill together with the erroneous area? On the black item, the seams are on the upper or lower edge afaict.
Trish
CC BY-SA 4.0
2021-03-09T02:53:45.277Z
Hi, thanks a lot for the reply. These parts are hollow, and infill for both are concentric. Does it have to do with belt tension or motor vibrations?
Anirudh Vasudevan
<print-quality><fdm><creality-cr-10><x-axis>
Strange vertical lines on X-axis direction of parts
Anirudh Vasudevan
# Strange vertical lines on X-axis direction of parts

(Asked by: username_0 on 2021-03-08)

This one is turning out to be a real head-scratcher. I'm running a stock Creality CR-10S and there seems to be a single line approx 45° across the print on the X-axis direction.

I have attached images to better explain. Any help would be greatly appreciated.

[![enter image description here](https://i.sstatic.net/iI07T.jpg)](https://i.sstatic.net/iI07T.jpg)
[![enter image description here](https://i.sstatic.net/WwS7x.jpg)](https://i.sstatic.net/WwS7x.jpg)
[![enter image description here](https://i.sstatic.net/wUoGh.jpg)](https://i.sstatic.net/wUoGh.jpg)
[![enter image description here](https://i.sstatic.net/CFAyf.jpg)](https://i.sstatic.net/CFAyf.jpg)
[![enter image description here](https://i.sstatic.net/vtaYD.jpg)](https://i.sstatic.net/vtaYD.jpg)

**Tags:** print-quality, fdm, creality-cr-10, x-axis

> **Comments:**
> **username_1**: This are probably wrong theories, so let's exclude them: Does this anyhow correlate with an infill pattern (here I think of "Infill overlap (%)" setting) or with the starting point of print for the outer wall (a Z-seam, you would need to observe during the print)?  
> **username_2**: Do you print Infill before walls? Can you print a copy of that item and *abort* that print mid-way, showing the infill together with the erroneous area? On the black item, the seams are on the upper or lower edge afaict.  
> **username_0**: Hi, thanks a lot for the reply. These parts are hollow, and infill for both are concentric. Does it have to do with belt tension or motor vibrations?  

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## 1 answers

### Answer by username_3 on 2021-03-10. Score: 1 | Accepted answer

In your slicer check your z-seam overlap. Lines like that are what happens when a slicer is systematically trying to hide a seam while not adding a ton of time onto the print by adding in a bunch of additional time for travel.

> **Comments:**
> **username_0**: This seemed to be the case, I was using matterhacker for slice and print. Didn't have this issue with Cura. Thanks a lot mate!  

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