The material is called TPU.
I used it to make a custom grommet for that foot massager.
This is how it behaves:

I had trouble cropping the image, finishing up with that great black block

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I only have one extruder, and that does plastic, so I could only print supermarket food, Joe.airboatr wrote: ↑25 Jun 2023, 01:02Make us some of this, Mike!
https://www.smithsonianmag.com/smart-ne ... 180981862/