<p>What could be the reason these defomations show on my 3D print?</p>
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<p><a href="https://i.sstatic.net/OlSTss31.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/OlSTss31.jpg" alt="image2" /></a></p>
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<p>I've tested it with different PLA filaments (different colors, different manufacturers), every time it's happening. I'm using Cura slicer and Anycubic Kobra 2 Max printer.</p>
<p>Tinkered with the print settings:</p>
<ul>
<li>changed to random seam caused zits and blobs everywhere;</li>
<li>higher temperature caused stringing, lower temperature didn't help at all;</li>
<li>lowered inside wall printing speed from 160 to 80 mm/s (no difference);</li>
<li>increased retraction rate from 40 to 80 mm/s (no difference);</li>
<li>changed travel speed from 120 to 300 mm/s (no difference);</li>
<li>Z hop is off;</li>
<li>wall thickness = 0,8 mm;</li>
<li>layer height = 0,2 mm, nozzle = 0,4 mm;</li>
<li>infill: lighting, 10 %;</li>
<li>printing temperature = 210 °C, build plate = 60 °C</li>
</ul>
<p>First layer is always perfect, 95 % of the print also looks well. It's just this 5 % that looks awful, especially at the inner seam inside.</p>
<p>What might be an issue? Is it a underextrusion or some settings in the slicer?</p>

CC BY-SA 4.0
2024-09-08T07:50:53.653Z
You don't have filament in time after a move. You should try to lower printing speed even further.
0scar
CC BY-SA 4.0
2024-09-08T08:34:50.793Z
I will try doing it. What about retraction settings, maybe i should disable retraction between layers? Or incerase pressure?
Tim
CC BY-SA 4.0
2024-11-02T09:21:36.307Z
How did you adjust your belts? If the belts have any slack at all, you'll get inconsistent prints. I'm talking about the two x-axis and one y-axis belts. The belt which goes around the top of the two z-axis screws doesn't *really* do much, so is inconsequential.
Pᴀᴜʟsᴛᴇʀ2
CC BY-SA 4.0
2024-11-02T13:50:19.410Z
PS: I may have x and y axis backwards ... I can never remember, lol.
Pᴀᴜʟsᴛᴇʀ2
<print-quality><filament><slicing><anycubic-kobra-max>
Inconsistent structure next to the corner seam
Tim
# Inconsistent structure next to the corner seam

(Asked by: username_0 on 2024-09-07)

What could be the reason these defomations show on my 3D print?

[![image1](https://i.sstatic.net/iVMn42fj.jpg)](https://i.sstatic.net/iVMn42fj.jpg)

[![image2](https://i.sstatic.net/OlSTss31.jpg)](https://i.sstatic.net/OlSTss31.jpg)

[![image3](https://i.sstatic.net/82jKLYvT.jpg)](https://i.sstatic.net/82jKLYvT.jpg)

I've tested it with different PLA filaments (different colors, different manufacturers), every time it's happening. I'm using Cura slicer and Anycubic Kobra 2 Max printer.

Tinkered with the print settings:

* changed to random seam caused zits and blobs everywhere;
* higher temperature caused stringing, lower temperature didn't help at all;
* lowered inside wall printing speed from 160 to 80 mm/s (no difference);
* increased retraction rate from 40 to 80 mm/s (no difference);
* changed travel speed from 120 to 300 mm/s (no difference);
* Z hop is off;
* wall thickness = 0,8 mm;
* layer height = 0,2 mm, nozzle = 0,4 mm;
* infill: lighting, 10 %;
* printing temperature = 210 °C, build plate = 60 °C

First layer is always perfect, 95 % of the print also looks well. It's just this 5 % that looks awful, especially at the inner seam inside.

What might be an issue? Is it a underextrusion or some settings in the slicer?

**Tags:** print-quality, filament, slicing, anycubic-kobra-max
> **Comments:**
> **username_1**: You don't have filament in time after a move. You should try to lower printing speed even further.  
> **username_0**: I will try doing it. What about retraction settings, maybe i should disable retraction between layers? Or incerase pressure?  
> **username_2**: How did you adjust your belts? If the belts have any slack at all, you'll get inconsistent prints. I'm talking about the two x-axis and one y-axis belts. The belt which goes around the top of the two z-axis screws doesn't *really* do much, so is inconsequential.  
> **username_2**: PS: I may have x and y axis backwards ... I can never remember, lol.  

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## 0 answers

