<p>Stringing can be fought by increasing the retraction length, but 6.5 mm (the default in Ultimaker Cura) is already pretty much. Please do note that too much retraction can lead to sucking air into the nozzle, which can lead to air pockets/holes.</p>

<p>Basically there are 3 mechanisms that are in play:</p>

<ul>
<li>Retraction</li>
<li>Temperature</li>
<li>Speed</li>
</ul>

<p>You have tried changing multiple parameters already. You may have better luck in reducing the temperature of the nozzle even further, start with a decrease of 5 &deg;C. All that is left to do is increasing the travel speed.</p>

<p>There are many <a href="https://www.thingiverse.com/search?q=stringing&amp;dwh=65b64b59ba5f5d" rel="nofollow noreferrer">stringing test prints</a> to print to fine tune stringing.</p>

CC BY-SA 4.0
2018-08-03T20:18:04.103Z
Great, that makes sense. My current values are as follows: `Print Temp = 195 C`, `Plate Temp = 60 C` `Retraction Distance = 8 mm`, `Retraction Speed = 60 mm/s`, `Print Speed = 25 mm/s`, `Travel Speed = 70 mm/s`. **Do you think making `Print Temp = 190 C` and `Travel Speed = 50 mm/s` would do the trick?**
elarr
CC BY-SA 4.0
2018-08-03T20:24:04.287Z
@elarr bump up the travel speed to 100 mm/s, you should increase that one. Many PLA filament can be printed below 195 degC. First try increasing the travel speed.
0scar
CC BY-SA 4.0
2018-08-10T18:48:16.587Z
It turns out, the problem was due to clogging of my extruder. The settings you provided work well though. Thanks!
elarr
CC BY-SA 4.0
2018-08-03T19:57:33.763Z
2018-08-03T20:34:11.320Z
2018-08-03T20:34:11.320Z
0scar
<p>I have been having a problem with stringing on my 3D printer, so initially I <strong>increased retraction distance from 6.5&nbsp;mm to 8&nbsp;mm.</strong> Then I tried again, with the same issue, so I <strong>increased retraction speed and lowered the extruder temperature.</strong> Same problem. Over and over. After I did each of these, I have since <strong>decreased move speed, increased minimum layer time, put fan on full blast</strong>, and nothing has seemed to increase print quality. </p>

<p>I realize this is a lot of alterations to be making, but I'm not sure what to do next. I am using 1.75&nbsp;mm PLA and a Monoprice Select V2.</p>

CC BY-SA 4.0
2018-08-03T19:55:38.487Z
Hi elarr and welcome to Stack Exchange 3D Printing!
0scar
<pla><monoprice-maker-select>
How to eliminate stringing and regulate flow rate?
elarr
# How to eliminate stringing and regulate flow rate?

(Asked by: username_0 on 2018-08-03)

I have been having a problem with stringing on my 3D printer, so initially I **increased retraction distance from 6.5 mm to 8 mm.** Then I tried again, with the same issue, so I **increased retraction speed and lowered the extruder temperature.** Same problem. Over and over. After I did each of these, I have since **decreased move speed, increased minimum layer time, put fan on full blast**, and nothing has seemed to increase print quality.

I realize this is a lot of alterations to be making, but I'm not sure what to do next. I am using 1.75 mm PLA and a Monoprice Select V2.

**Tags:** pla, monoprice-maker-select

> **Comments:**
> **username_1**: Hi username_0 and welcome to Stack Exchange 3D Printing!  

---

## 1 answers

### Answer by username_1 on 2018-08-03. Score: 3 | Accepted answer

Stringing can be fought by increasing the retraction length, but 6.5 mm (the default in Ultimaker Cura) is already pretty much. Please do note that too much retraction can lead to sucking air into the nozzle, which can lead to air pockets/holes.

Basically there are 3 mechanisms that are in play:

* Retraction
* Temperature
* Speed

You have tried changing multiple parameters already. You may have better luck in reducing the temperature of the nozzle even further, start with a decrease of 5 °C. All that is left to do is increasing the travel speed.

There are many [stringing test prints](https://www.thingiverse.com/search?q=stringing&dwh=65b64b59ba5f5d) to print to fine tune stringing.

> **Comments:**
> **username_0**: Great, that makes sense. My current values are as follows: `Print Temp = 195 C`, `Plate Temp = 60 C` `Retraction Distance = 8 mm`, `Retraction Speed = 60 mm/s`, `Print Speed = 25 mm/s`, `Travel Speed = 70 mm/s`. **Do you think making `Print Temp = 190 C` and `Travel Speed = 50 mm/s` would do the trick?**  
> **username_1**: @username_0 bump up the travel speed to 100 mm/s, you should increase that one. Many PLA filament can be printed below 195 degC. First try increasing the travel speed.  
> **username_0**: It turns out, the problem was due to clogging of my extruder. The settings you provided work well though. Thanks!  

---

