<p>It appears that some regions on my top layer has these weird patterns. It doesn't seem like over-extrusion because the extrusion lines go diagonally whereas these patterns look irregular and somehow &quot;organic&quot; to me. And, it only appears on some region.</p>
<p><a href="https://i.sstatic.net/x0A50.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/x0A50.jpg" alt="Pattern" /></a></p>
<p>I am using EAUN PLA+ and the printer is Bambu Lab X1C. It has an enclosure. Filament seems quite dry, I have put them in storage box with silica for 3 days. Also I enabled top surface ironing, this might be the cause but I am not sure, as these artifacts only appear in this region.</p>
<p>Any idea?</p>

CC BY-SA 4.0
2023-05-07T12:14:51.863Z
This is underextrusion, it is interesting to see if this is caused by the ironing. Try printing again without. Furthermore, putting filament in silica for 3 days will not dry the filament, you need to add heat as well.
0scar
CC BY-SA 4.0
2023-05-08T07:48:56.157Z
Thanks for answering, this sort of problem never happened again, so still unsure of the cause. Will keep an eye on it.
J. C. Stark
<surface>
Mysterious Top Layer Artifacts
J. C. Stark
# Mysterious Top Layer Artifacts

(Asked by: username_0 on 2023-05-07)

It appears that some regions on my top layer has these weird patterns. It doesn't seem like over-extrusion because the extrusion lines go diagonally whereas these patterns look irregular and somehow "organic" to me. And, it only appears on some region.

[![Pattern](https://i.sstatic.net/x0A50.jpg)](https://i.sstatic.net/x0A50.jpg)

I am using EAUN PLA+ and the printer is Bambu Lab X1C. It has an enclosure. Filament seems quite dry, I have put them in storage box with silica for 3 days. Also I enabled top surface ironing, this might be the cause but I am not sure, as these artifacts only appear in this region.

Any idea?

**Tags:** surface
> **Comments:**
> **username_1**: This is underextrusion, it is interesting to see if this is caused by the ironing. Try printing again without. Furthermore, putting filament in silica for 3 days will not dry the filament, you need to add heat as well.  
> **username_0**: Thanks for answering, this sort of problem never happened again, so still unsure of the cause. Will keep an eye on it.  

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## 0 answers

