<p>Elastomers do much better on direct-drive heads (pulled to the head by the motor) than on Bowden designs (where the material is pushed to the head by a motor). This is because the flexible TPU or TPE can bend in the guide tube, causing lag during advance/retract changes, and sometimes even bind up during delivery.</p>

<p>Look for equipment which explicitly states that it is compatible with, and designed for, flexible filaments.</p>

CC BY-SA 3.0
2017-09-27T11:54:50.480Z
2017-09-27T12:02:47.727Z
2017-09-27T12:02:47.727Z
Davo
<p>Flexible materials cause lot of issues if there is any space between extruder gear and PTFE tube. Since it is flexible it refuses to follow the path and starts bending around the opening. There are parts in Thingiverse that you can print to remove that distance. Additionally make sure that your extruder fan is working. After those two modifications, I was able to reliably print flexible filaments.</p>

CC BY-SA 4.0
2019-02-01T06:13:54.817Z
2019-02-01T11:49:12.730Z
2019-02-01T11:49:12.730Z
Cem Kalyoncu
<p>Is there anything special for printing TPU material e.g extruder or temperature?</p>

<p>It's my first time printing TPU material, so if you have any photos, it would be great if you can share them.</p>

CC BY-SA 3.0
2017-09-27T12:55:55.127Z
You'll get more useful answers if you post the name/model extruder you are using.  That way perhaps someone who's tried TPU on that printer will respond.
Carl Witthoft
CC BY-SA 3.0
2017-09-27T20:19:49.423Z
@CarlWitthoft I think we should avoid encouraging questions to become overly specific. Our goal is to build a database of questions and their answers, that can be found e.g. via google. "How to do X on printer Y" with a few mediocre answers specific to Y is useful to a much smaller audience than "How to do X" with a bunch of high quality answers on how to do X in general. This question has quite a bit of potential for attracting good answers on printing with flexible, and become a useful reference for many people.
Tom van der Zanden
CC BY-SA 3.0
2017-09-28T13:23:05.243Z
@TomvanderZanden  I agree with you, but to solve a specific person's problem it always helps to identify local vs. global issues.   We can modify our answers along the lines of "most extruders require X but your model requires Y as well"
Carl Witthoft
CC BY-SA 3.0
2017-09-29T04:41:59.893Z
@CarlWitthoft I  agree with you, but I just want to know the basic requirment for printing Tpu Materials e.g. how should be extruder long/shorts range etc.
I made my own diy makerbot replicator printer so to print tpu I just want to know if there is anything special about tpu printing extruder.
Dream Developer
<extruder><hotend><material><tpu>
How to print TPU material with 3D printer
Dream Developer
# How to print TPU material with 3D printer

(Asked by: username_0 on 2017-09-27)

Is there anything special for printing TPU material e.g extruder or temperature?

It's my first time printing TPU material, so if you have any photos, it would be great if you can share them.

**Tags:** extruder, hotend, material, tpu
> **Comments:**
> **username_1**: You'll get more useful answers if you post the name/model extruder you are using.  That way perhaps someone who's tried TPU on that printer will respond.  
> **username_2**: @CarlWitthoft I think we should avoid encouraging questions to become overly specific. Our goal is to build a database of questions and their answers, that can be found e.g. via google. "How to do X on printer Y" with a few mediocre answers specific to Y is useful to a much smaller audience than "How to do X" with a bunch of high quality answers on how to do X in general. This question has quite a bit of potential for attracting good answers on printing with flexible, and become a useful reference for many people.  
> **username_1**: @TomvanderZanden  I agree with you, but to solve a specific person's problem it always helps to identify local vs. global issues.   We can modify our answers along the lines of "most extruders require X but your model requires Y as well"  
> **username_0**: @CarlWitthoft I  agree with you, but I just want to know the basic requirment for printing Tpu Materials e.g. how should be extruder long/shorts range etc. I made my own diy makerbot replicator printer so to print tpu I just want to know if there is anything special about tpu printing extruder.  

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## 2 answers

### Answer by username_3 on 2017-09-27. Score: 5

Elastomers do much better on direct-drive heads (pulled to the head by the motor) than on Bowden designs (where the material is pushed to the head by a motor). This is because the flexible TPU or TPE can bend in the guide tube, causing lag during advance/retract changes, and sometimes even bind up during delivery.

Look for equipment which explicitly states that it is compatible with, and designed for, flexible filaments.


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### Answer by username_4 on 2019-02-01. Score: 2

Flexible materials cause lot of issues if there is any space between extruder gear and PTFE tube. Since it is flexible it refuses to follow the path and starts bending around the opening. There are parts in Thingiverse that you can print to remove that distance. Additionally make sure that your extruder fan is working. After those two modifications, I was able to reliably print flexible filaments.


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