<p>I have an FLSUN QQ-S Pro and I'm trying to print a part consisting only of thin walls with PLA. I'm using Cura 4.8.0, &quot;FLSUS QQ-S&quot; profile. Unfortunately, near the seam there are signs of underextrustion. It only happens near the seam, and after a few millimeters the wall is nice and smooth again.</p>
<p><a href="https://i.sstatic.net/eS8K4.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/eS8K4.jpg" alt="underextrustion" /></a></p>
<p>Things I've tried:</p>
<ol>
<li>Increasing hotend temperature to 210 °C</li>
<li>Setting flow rate compensation factor to 105 % (can't go much higher as the wall thickness will go up from current 0.4 mm - which is the desired result for this printer)</li>
<li>Disabling retraction</li>
<li>Enabling ironing</li>
</ol>
<p>None of that helped. Is there some way to push filament a little bit forward at the start of each layer?</p>

CC BY-SA 4.0
2021-01-01T05:50:07.153Z
What does the coasting setting look like in your Cura setup ?
Manfred R
CC BY-SA 4.0
2021-01-01T08:10:55.303Z
@ManfredR it's disabled
Vladislav Ivanov
<underextrusion><flsun-qq>
Under-extrusion near the seam
Vladislav Ivanov
# Under-extrusion near the seam

(Asked by: username_0 on 2020-12-31)

I have an FLSUN QQ-S Pro and I'm trying to print a part consisting only of thin walls with PLA. I'm using Cura 4.8.0, "FLSUS QQ-S" profile. Unfortunately, near the seam there are signs of underextrustion. It only happens near the seam, and after a few millimeters the wall is nice and smooth again.

[![underextrustion](https://i.sstatic.net/eS8K4.jpg)](https://i.sstatic.net/eS8K4.jpg)

Things I've tried:

1. Increasing hotend temperature to 210 °C
2. Setting flow rate compensation factor to 105 % (can't go much higher as the wall thickness will go up from current 0.4 mm - which is the desired result for this printer)
3. Disabling retraction
4. Enabling ironing

None of that helped. Is there some way to push filament a little bit forward at the start of each layer?

**Tags:** underextrusion, flsun-qq

> **Comments:**
> **username_1**: What does the coasting setting look like in your Cura setup ?  
> **username_0**: @username_1 it's disabled  

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## 0 answers

