<p>The helical exterior is an indicator of a filament diameter mismatch or volumetric mode enabled for linear commands</p>

<p>From <a href="https://www.reddit.com/r/ender3/comments/f0ik8k/volumetric_extrusion_psa" rel="nofollow noreferrer">ref</a>:</p>

<blockquote>
  <p>Then you probably enabled volumetric extrusion by accident.</p>
  
  <p>On LCD go to</p>
  
  <ul>
  <li>Control</li>
  <li>Filament</li>
  <li>Disable</li>
  <li>Save EEPROM</li>
  <li>Revert estep cal if applicable.</li>
  </ul>
  
  <p>What is it? <a href="https://marlinfw.org/docs/gcode/M200.html" rel="nofollow noreferrer">M200</a></p>
  
  <p>Its a feature of Marlin firmware which interprets E moves as mm<sup>3</sup> instead of linear mm. It is poorly described in the menu, and tends to be enabled by accident.</p>
</blockquote>

CC BY-SA 4.0
2020-04-20T20:32:09.250Z
2020-04-21T04:48:31.133Z
2020-04-21T04:48:31.133Z
swordfish45
<p>I am a beginner in 3D printing and recently bought an Ender 3. With the filament included in the package, my first print ever was flawless. However, after the first print, I tried printing with ABS, which did not work out, so changed to PLA, and ever since then, all my prints were under extruded. I have tried everything. I bought a new nozzle to make sure it wasn't clogged, I cut the last 20&nbsp;mm of the PTFE tube, I performed cold pulls, I leveled my bed before every print, made the line width in the profile 0.48&nbsp;mm instead of 0.4&nbsp;mm, increased the flow, tried printing with every temperature between 185-210&nbsp;&deg;C, looked at different Ender 3 suggested profiles on the internet, and more. I also made sure there was nothing wrong with the extruder. Attached are pictures of my most recent prints. Anyone who can tell me what I am doing wrong???</p>

<p><a href="https://i.sstatic.net/PXKIy.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/PXKIy.jpg" alt="enter image description here"></a>
<a href="https://i.sstatic.net/fF7kh.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/fF7kh.jpg" alt="enter image description here"></a></p>

CC BY-SA 4.0
2020-04-19T12:34:06.633Z
in what way did the ABS print fail? you might want to check the extruder mechanism and ensure it still bites into filament properly. shredded filament on the hobbed gear can cause unpredicatble underextrusion.
Harel Thapro
CC BY-SA 4.0
2020-10-21T07:07:40.203Z
Have you found and fixed the problem? If so, has the answer below led you to the solution? Please vote to accept the answer so this question is not bumped up once in a while and can be removed from the unanswered question list. You may even add your own solution and accept that after 48 hours! If you have not been able to address the problem please update your question.
0scar
CC BY-SA 4.0
2021-01-21T01:04:32.393Z
The Ender 3 V2 doesn't have this setting???
Joseph T Tannenbaum
CC BY-SA 4.0
2021-01-21T01:34:50.853Z
there are at least 5 large variants of the Ender 3 out there, and I have seen some 8 firmware distribution versions since I bought my first.
Trish
<creality-ender-3><underextrusion>
Ender 3 underextrusion
David Hyun
# Ender 3 underextrusion

(Asked by: username_0 on 2020-04-19)

I am a beginner in 3D printing and recently bought an Ender 3. With the filament included in the package, my first print ever was flawless. However, after the first print, I tried printing with ABS, which did not work out, so changed to PLA, and ever since then, all my prints were under extruded. I have tried everything. I bought a new nozzle to make sure it wasn't clogged, I cut the last 20 mm of the PTFE tube, I performed cold pulls, I leveled my bed before every print, made the line width in the profile 0.48 mm instead of 0.4 mm, increased the flow, tried printing with every temperature between 185-210 °C, looked at different Ender 3 suggested profiles on the internet, and more. I also made sure there was nothing wrong with the extruder. Attached are pictures of my most recent prints. Anyone who can tell me what I am doing wrong???

[![enter image description here](https://i.sstatic.net/PXKIy.jpg)](https://i.sstatic.net/PXKIy.jpg)
[![enter image description here](https://i.sstatic.net/fF7kh.jpg)](https://i.sstatic.net/fF7kh.jpg)

**Tags:** creality-ender-3, underextrusion
> **Comments:**
> **username_1**: in what way did the ABS print fail? you might want to check the extruder mechanism and ensure it still bites into filament properly. shredded filament on the hobbed gear can cause unpredicatble underextrusion.  
> **username_2**: Have you found and fixed the problem? If so, has the answer below led you to the solution? Please vote to accept the answer so this question is not bumped up once in a while and can be removed from the unanswered question list. You may even add your own solution and accept that after 48 hours! If you have not been able to address the problem please update your question.  
> **username_3**: The Ender 3 V2 doesn't have this setting???  
> **username_4**: there are at least 5 large variants of the Ender 3 out there, and I have seen some 8 firmware distribution versions since I bought my first.  

---

## 1 answers

### Answer by username_5 on 2020-04-20. Score: 3

The helical exterior is an indicator of a filament diameter mismatch or volumetric mode enabled for linear commands

From [ref](https://www.reddit.com/r/ender3/comments/f0ik8k/volumetric_extrusion_psa):

> Then you probably enabled volumetric extrusion by accident.
>
> On LCD go to
>
> * Control
> * Filament
> * Disable
> * Save EEPROM
> * Revert estep cal if applicable.
>
> What is it? [M200](https://marlinfw.org/docs/gcode/M200.html)
>
> Its a feature of Marlin firmware which interprets E moves as mm3 instead of linear mm. It is poorly described in the menu, and tends to be enabled by accident.


---

