<p>As per attached picture I can see that the issue source could be:</p>

<ol>
<li><p>the ptf tube is not inserted to the end of heat-break, or it is not straight-cut at the end - <a href="https://www.youtube.com/watch?v=K9InOVlQrro" rel="nofollow noreferrer">see this video</a> for help</p></li>
<li><p>the cooler on the hotend is not working properly/not installed and heat goes up to the throttle and melts the material</p></li>
<li><p>an object in the nozzle that blocks the flow (usually a ptf tube particle that probably melted) - clean/replace the nozzle</p></li>
</ol>

CC BY-SA 3.0
2018-04-18T15:08:21.780Z
I didn't know you needed to put the tube in that far, I'll try that out, thanks
Yente Cool
CC BY-SA 3.0
2018-04-18T16:27:07.727Z
@YenteCool the main problem is the point number 2 that creates the problem 3, so you will have that plastic worm.
Fernando Baltazar
CC BY-SA 3.0
2018-04-18T16:34:18.460Z
you can see this problem under this topic https://3dprinting.stackexchange.com/questions/4927/hot-end-jamming-very-quickly?rq=1
Fernando Baltazar
CC BY-SA 3.0
2018-04-18T14:14:20.163Z
2018-04-18T14:14:20.163Z
profesor79
<p>When I wanted to take out the filament from the extruder, it didn't wanna come out, it was stuck (even when I heated up the nozzle). So I unscrewed the nozzle and it looks like the filament is all pressed together at the top of the nozzle (see picture). What does this mean? I am heaving issues extruding filament from the nozzle, the filament barely comes out and the extruder motor is clicking. Can someone help, please.<a href="https://i.sstatic.net/KiRs1.jpg" rel="noreferrer"><img src="https://i.sstatic.net/KiRs1.jpg" alt="enter image description here"></a></p>

CC BY-SA 3.0
2018-04-18T14:12:33.983Z
What is the white stuff?  And the cylinder? from the pic it almost looks like you have some tape on the filament letting the glue run downwards towards the nozzle...  sounds crazy, but I remember a guy on youtube having exactly that problem with his CR-10...
mac
CC BY-SA 3.0
2018-04-18T15:24:34.683Z
The plastic is twisted, so it's damaged and damaged plastic becomes white.
Yente Cool
CC BY-SA 3.0
2018-04-19T03:25:56.740Z
could be too soft a filament for a bowden, could be moist filiment, could be a physical obstruction, could be too fast a feed rate, could be too low a temp.
dandavis
<filament><nozzle>
Why is my filament pressed together at the nozzle
Yente Cool
# Why is my filament pressed together at the nozzle

(Asked by: username_0 on 2018-04-18)

When I wanted to take out the filament from the extruder, it didn't wanna come out, it was stuck (even when I heated up the nozzle). So I unscrewed the nozzle and it looks like the filament is all pressed together at the top of the nozzle (see picture). What does this mean? I am heaving issues extruding filament from the nozzle, the filament barely comes out and the extruder motor is clicking. Can someone help, please.[![enter image description here](https://i.sstatic.net/KiRs1.jpg)](https://i.sstatic.net/KiRs1.jpg)

**Tags:** filament, nozzle
> **Comments:**
> **username_1**: What is the white stuff?  And the cylinder? from the pic it almost looks like you have some tape on the filament letting the glue run downwards towards the nozzle...  sounds crazy, but I remember a guy on youtube having exactly that problem with his CR-10...  
> **username_0**: The plastic is twisted, so it's damaged and damaged plastic becomes white.  
> **username_2**: could be too soft a filament for a bowden, could be moist filiment, could be a physical obstruction, could be too fast a feed rate, could be too low a temp.  

---

## 1 answers

### Answer by username_3 on 2018-04-18. Score: 3 | Accepted answer

As per attached picture I can see that the issue source could be:

1. the ptf tube is not inserted to the end of heat-break, or it is not straight-cut at the end - [see this video](https://www.youtube.com/watch?v=K9InOVlQrro) for help
2. the cooler on the hotend is not working properly/not installed and heat goes up to the throttle and melts the material
3. an object in the nozzle that blocks the flow (usually a ptf tube particle that probably melted) - clean/replace the nozzle

> **Comments:**
> **username_0**: I didn't know you needed to put the tube in that far, I'll try that out, thanks  
> **username_4**: @YenteCool the main problem is the point number 2 that creates the problem 3, so you will have that plastic worm.  
> **username_4**: you can see this problem under this topic https://3dprinting.stackexchange.com/questions/4927/hot-end-jamming-very-quickly?rq=1  

---

