I seem to recall a variation of this being discussed from Microsoft as
Windows 10 was coming out - "watermarking" the print by encoding data into
the infill. My failing memory says that the discussion at the time was more
about trace-ability so we could identify who was producing a specific
object...



On Mon, Jul 24, 2017 at 2:52 AM, <alan.b.pearce@stfc.ac.uk> wrote:

> Interesting article on using air pockets to mark and track 3D printed
> objects.
>
> http://www.theregister.co.uk/2017/07/21/watermark_3d_
> printed_plastic_with_air/
>
> The referenced paper also has a page and a half of interesting looking
> references.
>
>
>
>
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