# Printing with TPU

**URL:** <https://forum.snapmaker.com/t/printing-with-tpu/12480>\
**Category:** Snapmaker 2.0 (3-in-1)\
**Created:** [December 10, 2020, 1:18am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480 "2020-12-10T01:18:31Z")\
**Posts on this page:** 13\
**Page:** 1

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**Author:** ![Gumby54](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gumby54/32/7231_2.png) [@Gumby54](https://forum.snapmaker.com/u/Gumby54)\
**Post date:** [December 10, 2020, 1:18am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/1 "2020-12-10T01:18:31Z")

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When will the Snapmaker Team offer support for printing with TPU flexible filament.?  
I was told by SM support that the add on part for the print head only worked on SM1 and that they would look into the issues with SM2.  
I read many post giving working settings for TPU but I am very worried about having to clean up ooze in the print head and/or cause damage.  
Also any timeline on Luban firmware update.  
Thanks

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**Author:** ![sdj544](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/sdj544/32/11365_2.png) [@sdj544](https://forum.snapmaker.com/u/sdj544)\
**Post date:** [December 10, 2020, 1:29am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/2 "2020-12-10T01:29:13Z")

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According to them it already does.  
It’s just a matter of printing settings.  
In reality you probably need the adapter.  
There is no possibility of ‘ooze in the print head’. Well, at least not anymore than with any other filament or what already happens when a nozzle isn’t tight enough or doesn’t make a good enough seal to the heat block. The way it feeds means it would have to back up through the heat block tube and the likelihood of that happening is extremely small. The filament would cool and block the flow before that would happen.  
The main problem is that the soft tpu bunches up before it can exert pressure to extrude.

This is the thread you need to follow:

> [@Printing TPU with A250 (or any SM 2.0)](https://forum.snapmaker.com/t/printing-tpu-with-a250/6217/45):
>
> Finally started working with TPU today and glad i checked back here first for the adapter! I printed that first (thanks @chazr33gtr !!) before swapping to TPU, then just tried higher temp and slower output (to lower the pressure) and that didn’t quite seem to do it. It still output SOME filament, but it wasn’t consistent enough. Without being able to watch the inside of the box, I suspect that the filament would get bunched, slip off, release, and slide back on. But with the adapter, no problem! …

-S

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**Author:** ![brent113](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/brent113/32/11114_2.png) [@brent113](https://forum.snapmaker.com/u/brent113)\
**Post date:** [December 10, 2020, 1:37am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/3 "2020-12-10T01:37:46Z")

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> [@Gumby54](#):
>
> any timeline on Luban firmware update

Regarding that specifically, what are you referring to? The ability for Luban to update the machine firmware? At least for the main controller we can do that now.

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**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\
**Post date:** [December 10, 2020, 1:48am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/4 "2020-12-10T01:48:10Z")

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The above thread linked has a little piece to install in the print head to help keep the filament from getting out of position

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<div class="post-metadata">

**Author:** ![Gumby54](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gumby54/32/7231_2.png) [@Gumby54](https://forum.snapmaker.com/u/Gumby54)\
**Post date:** [December 10, 2020, 7:36pm UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/5 "2020-12-10T19:36:50Z")

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I was hoping for an update on supports to make them lighter and less bulky. I see some projects that would use as much filament on the support than on the item printed.  
Hopefully more specific preset for TPU and other type of filaments.

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**Author:** ![Gumby54](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gumby54/32/7231_2.png) [@Gumby54](https://forum.snapmaker.com/u/Gumby54)\
**Post date:** [December 10, 2020, 7:41pm UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/6 "2020-12-10T19:41:23Z")

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I was told by SM support that the adaptor will not fit the SM2 only the SM1 print head.  
I don’t want to damage anything so I wonder if people who used that adaptor are using it in the SM2 model successfully and is the a picture or video to demonstrate the installation?

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**Author:** ![sdj544](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/sdj544/32/11365_2.png) [@sdj544](https://forum.snapmaker.com/u/sdj544)\
**Post date:** [December 10, 2020, 7:57pm UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/7 "2020-12-10T19:57:00Z")

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The print heads are completely different.  
There are two different adapters. One for each.  
As I understand it with the SM1 you actually have to do some modifications.  
With the SM2 adapter it just fits in when you open the door and easily pops out when you don’t need it.  
One note, on mine I have to install it with print head lying on it’s back.  
It is not an officially supported mod. They don’t think there’s a problem.  
So if you can’t print tpu you have to decide whether you want to risk voiding your warranty.  
As far as supports goes, use cura. Lots of settings for that.  
-S

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<div class="post-metadata">

**Author:** ![Gumby54](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/gumby54/32/7231_2.png) [@Gumby54](https://forum.snapmaker.com/u/Gumby54)\
**Post date:** [December 10, 2020, 8:12pm UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/8 "2020-12-10T20:12:14Z")

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Thank you so much for your reply and your info. I have to check out Cura. Do you happen to have a link to the SM2 adaptor. I have one but there’s no indication of which one it is for.  
Cheers,

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<div class="post-metadata">

**Author:** ![MooseJuice](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/moosejuice/32/10684_2.png) [@MooseJuice](https://forum.snapmaker.com/u/MooseJuice)\
**Post date:** [December 10, 2020, 8:17pm UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/9 "2020-12-10T20:17:31Z")

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Heres a couple of variants on it… theres another one someplace in the thread too.

> [@Printing TPU with A250 (or any SM 2.0)](https://forum.snapmaker.com/t/printing-tpu-with-a250-or-any-sm-2-0/6217/38):
>
> @stevilg sure no probs… here it is… as one solid piece… and in two halves for easier printing[snapmaker\_flex\_feed\_adapter\_2\_halves.STL](https://forum.snapmaker.com/uploads/short-url/tqDdKpWLsB3O1PwOhlh6JkxzUY7.STL) (40.5 KB) [snapmaker\_flex\_feed\_adapter\_one\_piece.STL](https://forum.snapmaker.com/uploads/short-url/mQ6yVLzMgKjM0sQHJnqi5gZUWPr.STL) (38.4 KB)

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<div class="post-metadata">

**Author:** ![sdj544](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/sdj544/32/11365_2.png) [@sdj544](https://forum.snapmaker.com/u/sdj544)\
**Post date:** [December 10, 2020, 8:17pm UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/10 "2020-12-10T20:17:46Z")

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There are several options in the thread I first posted.  
This one has support designed in  
[https://forum.snapmaker.com/uploads/short-url/4EGtAoJdG6M3DHZ7hYYSORp3dFY.stl](https://forum.snapmaker.com/uploads/short-url/4EGtAoJdG6M3DHZ7hYYSORp3dFY.stl)  
-S

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<div class="post-metadata">

**Author:** ![lugovelb](https://avatars.discourse-cdn.com/v4/letter/l/d6d6ee/32.png) [@lugovelb](https://forum.snapmaker.com/u/lugovelb)\
**Post date:** [July 16, 2022, 3:46am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/11 "2022-07-16T03:46:41Z")

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How do you install this adapter?

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<div class="post-metadata">

**Author:** ![sdj544](https://sea2.discourse-cdn.com/flex022/user_avatar/forum.snapmaker.com/sdj544/32/11365_2.png) [@sdj544](https://forum.snapmaker.com/u/sdj544)\
**Post date:** [July 16, 2022, 8:10am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/12 "2022-07-16T08:10:12Z")

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Open the door and put it in.  
I find it easier to do with toolhead unmounted and on it’s back. Otherwise it tries to fall out.

-S

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<div class="post-metadata">

**Author:** ![CNC-Maker](https://avatars.discourse-cdn.com/v4/letter/c/df788c/32.png) [@CNC-Maker](https://forum.snapmaker.com/u/CNC-Maker)\
**Post date:** [July 17, 2022, 7:10am UTC](https://forum.snapmaker.com/t/printing-with-tpu/12480/13 "2022-07-17T07:10:11Z")

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Here is something that I posted in another thread. I think this is better, and it allows you to adjust the tension to match the filament that you are using:

> [@Printing TPU with A250 (or any SM 2.0)](https://forum.snapmaker.com/t/printing-tpu-with-a250-or-any-sm-2-0/6217/96):
>
> @highpower this is a known issue, and there is a rather simple workaround: Manually load the filament into the 3D Printer Module and leave the door open. Place a long piece of scotch tape as the base of the door and angle it up vertically, slightly to the right, so that you can stick the other end slightly to the right of the filament entry point. Using the end of the tape that is free, apply light pressure to the filament by tensioning the tape and sticking it to the top of the 3D Printer Mod…

[![](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/3X/a/6/a65d2292161d8505d286bf566193527d43dcdfba.jpeg) ](https://us1.discourse-cdn.com/flex022/uploads/snapmaker/original/3X/a/6/a65d2292161d8505d286bf566193527d43dcdfba.jpeg)
