# Flexible resin for soft robotics?

**URL:** <https://forum.formlabs.com/t/flexible-resin-for-soft-robotics/21090>\
**Category:** General Discussion\
**Created:** [November 7, 2018, 1:46pm UTC](https://forum.formlabs.com/t/flexible-resin-for-soft-robotics/21090 "2018-11-07T13:46:26Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Sparks](https://avatars.discourse-cdn.com/v4/letter/s/ee7513/32.png) [@Sparks](https://forum.formlabs.com/u/Sparks)\
**Post date:** [November 7, 2018, 1:46pm UTC](https://forum.formlabs.com/t/flexible-resin-for-soft-robotics/21090/1 "2018-11-07T13:46:26Z")

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Hello everyone, I’m new here.  
Looking to make a tentacle like soft robot grip. I came across this thread:  
[Soft Robotics?](http://forum.formlabs.com/t/soft-robotics/9129) Which was quite some time ago and wondering if more people have experimented with it since then and have some insights as to whether it’s a good enough material for the task without the need for a mold.

Thanks,  
Sparks.

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**Author:** ![P3D](https://avatars.discourse-cdn.com/v4/letter/p/2acd7d/32.png) [@P3D](https://forum.formlabs.com/u/P3D)\
**Post date:** [November 7, 2018, 2:21pm UTC](https://forum.formlabs.com/t/flexible-resin-for-soft-robotics/21090/2 "2018-11-07T14:21:08Z")

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I can only say that judging from my experience, the standard flexible is not up to the task, since it tears quite easily. I did not experiment with resin mixtures so far, so unfortunately I can’t provide any input on that.

There are many flexible filaments for FDM printers, most of which are also extremely tear resistant, but for the really flexible/soft ones you have to get a printer optimized for these materials (direct extruder etc). Also, the usual FMD limitations apply (difficult to get reliably water/airtight, need for supports, relatively coarse resolution compared to SLA, anisotropy)

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**Author:** ![Walter\_Gillespie](https://avatars.discourse-cdn.com/v4/letter/w/35a633/32.png) [@Walter\_Gillespie](https://forum.formlabs.com/u/Walter_Gillespie)\
**Post date:** [November 7, 2018, 8:59pm UTC](https://forum.formlabs.com/t/flexible-resin-for-soft-robotics/21090/3 "2018-11-07T20:59:04Z")

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I have a liter of ALW flexible resin I’m not going to use. Contact me if your interested in it.
